Looking for vintage system suggestions (maranta, klipsch, etc...)

I'm gonna offend some folks here, but I honestly think the 2270 is the most overrated unit of all vintage receivers. It's got that iconic look and a good sound, assuming it's been fully restored and meticulously burned in and dialed in. I think the 2275 is the better choice. I like my 2252 because it's got more punch and sparkle as opposed to the "three martini" sound. I think it lends more depth and detail. 
On the speaker front, I like ESS. You probably don't get much further from Klipsch than that. I like my AMT1's, but a hulking pair of AMT-3 Rock Monitors would be my ideal choice. Those are truly monster floor standing, gut rattling beasts that will soak up as much clean power as you can throw at them. In good shape, if not restored, they're bold statement pieces. 

Restored Fisher 500c
Klipsch Heresy
Thorens TT, stock arm, Ortofon mid level cartridge

or restored AR TT and Shure M97 cartridge.

Done.

Warm tube sound to balance (potential) harshness from the Heresy pr.  Enough power to drive the speakers in all but large rooms at stadium volume.   TT, once restored and set up properly, is essentially set and forget.

You should have money left over from your $2500 budget.

Hi , my 4 cents . Go big , and get a modern turntable . I have a Marantz 2223b paired with Klipsch KG 1.5's on heavy metal stands in my bedroom . I have a Sansui 9090db  paired with JBL 4312's on Sound Anchor stands in the den . I have a pair of Klipsch Heresy II's in the closet that I rotate with the big system . I have modern low powered SEP tubes in the living room . I gave my vintage Pioneer turntable away . Orange County speaker has everything you need to restore JBL's and there are many places to obtain Klipsch parts too . I really dislike the newer Klipsch speakers , too bright ! The Heresy's on stands or platforms are nice . I'm not much of a passive radiator fan . Get some modest interconnects and speaker cables ( don't overspend ). Get a modern turntable that fits your budget . The styling will match your system, especially with a walnut base . While vintage receivers have " The Look ", will you ever use the tuner . Maybe consider a vintage integrated amp . I use 10 gauge bulk wire for the Marantz and the old woven Kimber wire for the Sansui ( I goes with the look ). It's important to match your receiver/ speaker combo ! I put the Marantz and the KG 1.5's together , and with the stands and the appropriate distance from the wall , the puny system really kicks ass . Also it's one of those rare few systems that all classic rock sounds good on . The Sansui/JBl less so , and my SEP/ Zu Omen system is extremely material sensitive ( boo hoo ). So in closing , Try to audition the pair . Go big , modest cables , and modern turntable last . Also try FLAC files with a decent DAC , you'll be surprised , especially VS the cost of getting back into vinyl . Happy Listening and I  look forward to hearing what you get . Regards , Mike . 

To answer your question about where - if you join audiokarma, for paid members, there's the Bartertown area of the site where a lot of restored vintage gear are offered up.  Many of those were restored by respected techs and are being changed hands by collectors for various reasons.  And everyone is quite helpful sharing their experiences.

I'm another klipsch/marantz fanatic.  They are a very good match.  However, as I got into the heretiage line, I have fortes and heresys, and further into vinyl, I discovered tubes bring out dimensions in klipsch  I did not know were there.  I buy everything on Craigslist and take my time, but the secondary system I have recently stumbled upon is, imho, unbeatable for price.  I'm driving recapped heresys with a modern 7 tube 20watt per channel jolinda integrated amp for under $800.  This simple, elegant, low watt, high efficiency combo sounds nearly as good as my 3x more expensive main system (forte, rogue audio tube pre, moscode tube hybrid) and way better than my 200watt solid state McIntosh amp. And is every bit as loud. If your are going to be listening to vinyl you are makeing a huge sacrifice for the aesthetic's of a 70's solid state unit vs the sound of tubes. (Though I think the aesthetics of most tube units are outstanding). Used heresys are easy on Craigslist and finding a low watt modern integrated tube amp in the 500-1000 range on Audiogon is very doable and leaves plenty of paper in your budget for either a vintage or modern turntable. I'm no expert, but have been obsessed with similar questions the last few years and my ears have led me to these conclusions. :-)