Hey!
Nice case work.
But what's under the hood and those huge transformer covers?
When is come to tube amp, especially SET or SE type output transformer is very critical. If the output transformer is no good than nothing else before that matters.
Also, this amp seem to use uncommon front end tubes.
Anyway, I would say that save a bit more money and look for a use SET or SE amp available here in the US or wherever you are.

Take care,
Buddy