This post is 20 years old — just sayin’ — but anyway, @mal11963 as you’ve found with speakers and preamps audio has advanced quite a bit over the past 30 years and that certainly includes Bryston. You could probably make a firm $2000 bid on this nice 4B SST and very likely experience yet another significant improvement on the relative cheap.
https://www.ebay.com/itm/195184094201
Personally, I’d snatch up this upgraded McCormack DNA-1 for $2295 as I think it would do magical things in your excellent system, and if desired you could send it back to SMcAudio and add a Gravity Base for $700 (and possibly other upgrades if desired) and up the performance even more for not much $$$. But that’s me. Just another option to ponder, and BTW not sure you need a tube amp as many people are very happy pairing a good solid state amp with a tube pre and not have to bother with having to deal with or replace potentially expensive tubes. Anyway, FWIW…