Not yet, but what's to wing? I think that series runs on the common LM3886 power amp IC, and the power supplies are going to be conventional rectifiers and filter caps. I think one could slap a fuse in it and run it up on your light bulb or variac and see if it draws excessively. If so, a couple 3886 or rectifier later, it is likely done.
Take a estimate fee and see.