Factors to Consider in Selecting a Tube Amp

[Msegal]

I find that synergy is very important for reaching the goosebump zone. I found that a McIntosh preamp sang better than all other preamps I tried with my Mc275’s. I agree that tubes all around will help to reach the nirvana you seek.
C1100 and mono MC275’s is where I would start. The Audio Research are more expensive and represent the pinnacle of WOM. Whether they are worth the significant up charge depends upon your fiscal priorities.
I have heard BAT in the past and found them very musical. They seem to have a greater online sales presence for their entire line and as such are difficult to find in stores.
There are lots of great options out there as you have indicated. The MC275s and C1100 will get you your McIntosh sound, remain in your price point, give you synergy, enough power for most applications and McIntosh resale, repairability and service.

Just my $.02.

Mike