Sounds like that Type 50 amp would be real nice. I'm considering one - different overall topology - for my next design/build.
I'm really curious about the amorphous core transformers - are the a clear step up over regular transformers?
Amorphous apparently sound "different": resolved without being harsh, when well designed. Core size and winding geometry should be chosen carefully - simply substituting in amorphous for other steel grades as some have done is not ideal and leads to a tilted up sound with weak/soft bass.
Certainly they are a step up and are expensives, amorphous cores are high quality cores I have seen in small power tube amps, the Yamamoto 45 amp use all transformers in Amorphous cores.
I've never seen that mentioned before - thought they were high-B silicon iron types.
The EML Type 50 tubes are supposed to be very good. From memory, DHT Rob did a brief review, preferring the EMLs to a few different types of NOS, including globe.