If your were to assemble a vintage system ?

@artemus_5 

You're right, the HK 730 is an excellent unit.  If you already own one, these are well worth having redone, or buying one.  If you don't, just as with an old car, a buyer would be better off getting one that has already been restored. 

Good separates, HK or otherwise, would likely blow this budget.  

This is right in the wheelhouse of our little shop here in Austin. We restore pre 1980 amps, receivers, and turntables for clients. And in our mind, "vintage" ends around 1980.  A few suggestions.

First, any vintage amplifier or receiver should have recently replaced electrolytic capacitors. It’s a waste of time otherwise. No doubt the reason that some have had bad experiences with period gear. You won’t hear it as intended otherwise.

Some speakers age better than others. Classic Klipsch usually need little or no attention, many other mid centuries use foam surround and NPE capacitors that need replacing.

Unless vintage cart has a new (not NOS) OEM stylus, it’s best to go with new here. Hard to beat an Ortofon 2M Red or Blue for the money.

Some examples with alternates we think will take on many a more expensive modern one:

Turntable: Technics SL1200II / P2 as alternate
Amplifier: Sansui AU 717 / Luxman R-1050
Speakers: ADS L 710 / Klipsch Heresy (original)

This particular combos might be tricky to keep in the OPs budget, but it would be well worth it.

@filipedine You're right, extensive service is needed before equipment of this age will perform as intended.  But not quite this extensive. Certainly all electrolytic capacitors in the amp and power supply stages.  Some small signal transistors such as the differentials in Pioneer and Marantz degrade from heat more than age.  In certain makes and model, we have seen resistors degrade.  Non polar capacitors typically need not be replaced.  Some exceptions are the early Sprague "bumble bees" in tube gear.  Operating tube gear with failing capacitors can lead to very bad things.  

It has not been our experience that power transistors need to be replaced, unless there was a catastrophic failure.  A "blown" channel.  Same for power resistors.  Although some diodes are replaced, many can be retained.  Failure of power rectifiers for example is pretty rare, and these do not normally need replacement. As for fuses, they do not normally need replacement.  A blown or damaged fuse is however a potential sign of serious trouble.  Fuses do NOT normally fail.  Replacing and powering up in some cases can cause irreparable damage.  

If you are buying vintage gear, it's a safer bet to get a piece of equipment that has already been through a restoration process by an experienced technician, than to buy an unserviced piece.  Otherwise, buy with the idea that hundreds of dollars of work could be in your very near future.  

@mesch For trying to stick in the mid 60's I'd say a Fisher X10 or maybe a Scott 299A.  The little ST 70 is a solid little power amp.  Dyna's PAS preamps were great for the money, but the Scott and Fisher units are superior by a good margin.