I have not seen that amp but i just rebuilt an STD4 amp . It was not a
big deal . I suppose one of those rebuild services would go ``whole
hog`` and charge over 200$ or so ?? I think 100$ or less total would be
a fair price to do the one i did .

I dont see where you would have to send that away just to have a few
capacitors repaced . Can you try a local shop ?