$50k - $80k Budget…Opinions please.

Kind of hard to recommend equipment when you said nothing about your room. If you don’t have a good room then you will be wasting your money. 
if you have a smallish room then it would be foolish to recommend a large floorstanding speaker and if you have a large room, you will want something bigger than a smallish stand mount speaker. 
Before going to a dealer, go to some audio shows to get a feeling of what type of sound you like

@corelli 

A-Freaking-Men

$80k of gear is going in a dedicated room with proper treatment?

Waste of money otherwise.

Stop bragging.

Be a real hero spend $10k and invest the rest just in case. I could have spent 10 times what I did on my system, but the what if’s always creep into my head. 

not me.  Even though I could, it would embarrass me to spend 80k on a sound system.  And, I already have a robust solar power system, so I don't need the $ for that, either, since that's done. 

But, that's me... other priorities...  

@curtdr ,

+1 agreed ….. I have what I consider great sound for around 4K currently but all used, would be over 20k new. 
 

but…. If I had budgeted 80k for a system and it would not effect me in a negative finanancial way I would be all over it. 
 

You might consider a financial planner as being more of a priority than your next 80k luxury item.  I mean, to pay off family debt you get a fraction of your systems value, and a year later drop 80k on a luxury item.  That math does not add up.  Well, at least not the way I earn my money.

my opinion is you do not need to spend nearly that much to get awesome sound in a home

You should start here or somewhere similar. Listen to systems and decide what speakers you want on your short list. After you make that decision you can do some additional listening. After that I would work on arranging some home demonstrations

https://www.pacificaudiofest.com/

Heart of the System:

Vintage Tube Tuner Preamp McIntosh mx-110z.

No matter what budget, what system, if mine was stolen, I would order a  replacement immediately, send it to Audio Classics, have them get it back to specs (not upgrade), and have them replace all the old rca jacks with new gold plated ones like they did to mine. I'm a fan of original lighting, not new LED.

McIntosh Mode Switch gives versatility, Mono Mode, other functions I particularly need it for balancing my speakers that have L=Pads for mid horn and tweeter horn. 

here's one, all the text is in good shape front and rear. 

https://www.ebay.com/itm/125375766529?mkevt=1&mkcid=1&mkrid=711-53200-19255-0&campid=5338381866&toolid=10001&customid=2469a996-fa93-11ed-b93c-313461313663

Wait for a great unit, no need to settle in your budget.

I would have seller pull it out of the case to see condition of parts and deck, to confirm not kept in damp location.

This is what convinced me to try it:

https://positive-feedback.com/Issue77/vintage_mcintosh_experience.htm

Most people have never heard a wonderful FM tuner. This one needs a strong signal, I have a dedicated antenna in the attic right above it, aimed at WBGO Jazz station. Everything they say about it is true, Richard Modaffari said there is NOTHING he could do to improve it.

https://www.audioclassics.com/mods

MM Phone stage (2) sounds great, I use a SUT for MC into it. Tape LOOP, ....

I solved remote control volume with a more modern integrated amp.

@toddcowles I never would have guessed that there’s another soul on this planet who loves both Radiohead and Brent Cobb…good luck w your system!

With that budget you need to demo. If you want to buy new and could find a dealer that you could buy everything from I bet you could get a Substantial discount. 
 

Them prices I would be looking at Higher end Focals but that’s just my tastes. 

I’d spend most of my time and budget on the finest pair of speakers that floats my boat and works with my room and whatever treatments it will have. Then would pursue proper amplification for them with the features you want. It’s too subjective and proprietary to your situation to make specific recommendations, but odds are good it’ll be brands that the main stream aren’t overly familiar with. I'm partial to good tube electronics and/or tube/SS hybrid bi-amp situations, and great midrange with clarity and convincing soundstage...your tastes may vary, but there's no reason to settle for anything you don't love. 

Select music sources and cabling that will play well with the speakers and amplification, and that you’ll be happy using.

You’re smart to be planning in advance.

With that budget you should be able to go digital only and rival many analog systems.

Here's what I'd consider

Speakers: SF Olympica Nova 5 (~$20k)

Amplification: Moon 860Av2 (~$20k)

Preamp/Network combo: Moon 390 (~7k)..the new 791 (~$16k) could be interesting

Roon Nucleus with internal hard drive (~$2k)

If desired turntable with isolation platform (e.g. Rega P8 {~$5}  with HRS platform {$1,5k})

Speaker cables ($2k), interconnects ($2K) and power cables with power distributer ($3k) with circuit guard (Shunyata power, Nordost/Transparent/Kimber speaker cables & interconnects)

Audio rack (~$2k)

Stressless Recliner ($3k)

But that's me...

think preferences thru before reviewing specific equipment:

1. tubes or SS: TUBES,

both preamp and amp, or integrated. 

2.  speakers: EFFICIENT, to keep power need down, heat down, size down, increase flexibility of placement, remember line of sight of any remote beam.

3. type of drivers:

Horns and Big Woofer, no ports;

no horns, lots/enough bass, no ports;

no horns, no ports, stereo pair of subs.

f. Features: many or purist. i.e. Stereo/Mono; Remote Balance; fletcher munson 'loudness' eq for very low listening; some defeatable tone controls; tape loop; dual output

g. Vintage or New or mix.

h. Phono, a big category, keep options and future options, and flexible gain/flexible impedance in mind. SS or Tubes? TUBES

i. Turntable: DD or belt or idler? Plinth size to fit Long Arm

j. Tonearms: Single, Two, Three {MC, MM, Mono ready to go back and forth in any listening session

Check out the YG Acoustics Vantage Live.  Perfect for you. 

I agree with others.  This will require a lot of leg work, and that is part of the fun.  For that money you have to listen.  The upside is that you know what you like and have a trained ear so I think you will know it when you hear it.  You may likely be able to get an amazing system that you are very happy with for much less then your budget.  

With a budget like that, if possible, seek a good dealer or three, and listen to complete systems, not just individual components hodge-podge. Then start narrowing down likes/dislikes, and whatever requirements you need for your system. Then, demo a few systems in your own home/room. 

This all may take longer, and more effort on your part, dealers certainly at this price range should have no problem(?) allowing in-home demo-at least I would make it a requirement to do so! Only you know what you like! And the main thing, have fun when you do it, enjoy the process as much as the result!

With that kind of money, it makes sense to first go to a big audio show.  There are vast differences in sonic approaches and most of them are within your budget.  After you hear stuff that you liked, if you report your preferences, people here can provide informed opinions.

Vinnie Rossi integrated  : Home theater Bypass you may use in your HT.   
( Solid State  and Tube  )

Piega Master Line Source 3  you may use in your HT 

Both : +- 80000$