Check out Audio Classics in New York State,

They know this stuff inside and out, up and down. Great company.

Be aware that owning tube equipment is something of an exercise in masochism. You have to hear harsh sound for a while as you burn in the tubes, then you listen contentedly for about fifteen minutes, and then you start worrying about whether your tubes are going bad. Couple that with finding a good source for tubes, which is sort of like a snipe hunt.....

That being said, best sounding equipment I ever had was a McIntosh integrated. Sigh.