Another layer peeled back, perhaps a thin one...but it offers simplifecation to the Merlin construction. Excluding the PS, there is very little involved with the amplifier. The E-Linear output TX, a pair of power valves, and a pair of matched triodes( either in one or two envelopes ). Say $3 6BQ7/6BK7 or a $2 6J6A and what ever power valve you want. EL84 to 6V6 to 1624/1619 or HY1269 or on to the bigger pentodes like 4E27 or 813.

It just depends on how big a PS you want to build. On top of that, with a 1650E 8k a-a Hammond, you can probably build quite an inexpensive amp which will kick serious tail in a price class an order of magnitude higher. I am not sure about the 43% E-Linear point, but it should be easy to design around somehow...

back to listening, the amp does like a bit of warm up.
cheers,
Douglas