Recommendations and thoughts for end game speakers and amps

you need big power for Rockport. I heard the Vitus class A stereo amp (50w) and wasn't enough, even in class A/B mode.

There is an Avior user on WBF that has great results with Moon 860av2 which would match the sonic traits you are seeking. 

This is such a personal decision.
Your dealer and we may have favorites...but it's up to you. 

Maybe start with what sound you want in your room. The room is a big player. Don't fight the room and its furnishings. You may move, but your furnishings and decor sensibilities usually go with you.

What speakers do you, your room and your furnishings like?

Then what amp do your speakers like?

I'm in a similar position. About to get my end game speaker and amp combo. I'm getting Tannoy and Luxman. Haven't decided how far up the Tannoy chain I can go...but hoping to get Kensington GR. 

I have Rockport Cyngus which sound very much like the Avior II except more bass for my big room.  I paired them with Boulder 2160 and the sound is great. I compared Nordost Tyr 2 to Iconoclast Silver Pated TPC.  The Iconoclast sounded identical to the Nordost for 1/3 the price.  After having FETs and tubes I found nothing beats the speed and transit response of BJTs.  The tube and FET amps I had always had soft highs which, while clean, sounded unnaturally soft.  The trick with BJTs is look for as much class A as you can afford.  I listed to the Boulder 866 with the Aviors and I think that would be a great system.

Great audio store / music lover in Fort Collins

best to you on your journey, enjoy the music

You could spend about half as much and try Kii3 with BXT or Geithain if you can find them.