Ok....Audiogoners: need some tube amp ideas

Any suggestion/comment is appreciated. Just off the top of my head, below is a list of initial parameters.

- budget: $4k ish (somewhat flexible)
- tubes/valves amp(s)
- preowned or new
- mono or stereo configuration
- min wattage: 70 and higher (this rating would afford me more speaker options down the road e.g. 4/8 ohm and >88db efficiency)
- brand(s): leaning toward more esoteric manufacturers or models (e.g. Dodd 120, VAC PHI, Audio Valves); would prefer staying away from manufactueres that do magazine advertisement.

Current thought: I might push the budget a bit to consider a pair of preowned Lamm ML1.

Thanks much. (currently listening to Rachmaninoff Piano Concerto No.2 by NY Philharmonic/Berstein)

Ken