Here's an idea that I have been kicking around since receiving my Forte 4's .
How about a Coincident Dynamo 34se mk III ? It is an integrated using EL-34's
in a single ended topology . Only 8 watts but they should be healthy watts
and hundreds of dollars less than the two others. Although I don't know about
the other speakers .
The Forte's are listed at 99db. eff. but are generally accepted to be closer to
@96db .
Just a thought .
Good luck & be safe .