Top vintage receivers vs. modern high-end equipment

I think the op wants to have some fun with his set up.  The Onkyo 8500 was mentioned above. I will second that. The onkyo tx4500 and tx8500 get little love, and are way under the radar.  You should be able to get a nice example for around $500.  No marantz or pioneer tax on good vintage sound.  If you end up not liking it, simply resell it.  

Skip vintage ss and go tube. An old marantz, McIntosh, fisher or sansui tube setup with those paragons would be fantastic. Good luck 

My 2 cents. McIntosh MR78 is an excellent tuner that also has that look. If you get lucky, maybe it has had the Modafferi modification already done. Pair it with a classic integrated unit. Synergy doesn't seem to be all that important since it is just a tuner.  Better yet, add the McIntosh Mi3 to hone in the tuning and add awesome visuals at the same time.

I bought a Sansui AU-7700 and love it so much I bought another Sansui of the more advanced alpha series... The sound is more refine yes, but I like the Au-7700 so much, that I listen to it mostly with speakers and headphone... There is better ? Yes, but at which price? And better for what? Where is the contemporary product that have so useful tone controls of the highest quality, a separated pre-amp function of great quality, a useful loudness button, a phono section of the highest quality adjustable , etc etc...? The answer is no contemporary amplifier had these many features...

The Sansui is so good that I dont listen to any limitation when upgrading the source, on the contrary with any upgrade of source, with any tweak to the electro-magnetic fields of the gear and room, the Sansui seems to sound better, totally detailed and organic, holographic and tube-like...

The real question is not: should i buy vintage or contemporary ?... The real question is "with a low investment", which contemporary low cost amplifier can beat a Queen of yesterday’s audiophile kingdom like a TOTL Sansui ? The answer is none ...

I can crush my Sansui if I buy for example a dreamed Berning ZOTL amplifier around 5000 bucks, but the Sansui cost me 100 bucks+150 bucks to clean the old catalytics etc... The other question is the Berning amplifier will be better but the margin of improvement will equate with 4,500 bucks more than the Sansui price... Is the Sansui so bad that I want to upgrade it? The answer is no, except if I bought a winning lottery ticket...

Vintage Speakers, TT, Reel-Reel, Tuner but use a modern integrated. I've owned a good bit even Fischer 500c and 800c the 500c all rebuilt to slightly better than new by the Fischer Doc. And even that was trounced by a $400 Chinese tube integrated.