The Mc preamps are simply excellent, and don't let contrary opinions dissuade you from considering them. Harry Pearson had a C2300 in his reference system for over a year, and that was unheard-of longevity for him. McIntosh offers rock-solid build quality, superior performance and unbeatable resale value. Some folks prefer their tubes, others SS. I've had both in my system and while I preferred the tubes in my C2300, the SS C50 is a better match for my lifestyle.
In your case, I suggest you keep an eye out here and a couple of other websites to see what pops up in your price range. $3500 is a goodly budget and can net you some really nice stuff. Audio Research, Cary, Krell and McIntosh are all viable major producers in that ballpark and there are other, very well-regarded niche players too. You can also talk to the folks at Audio Classics. While they specialize in Mc, they handle all the rest too and can offer ideas on what might be the best match for your needs. A phone call is a lot less expensive than a mismatch without an audition.
Good hunting & happy listening!