These radios were meant to play, not sit and decay.
If you're man enough to lug it to the Aesop Engineering table, I'll troubleshoot it, using a variac, plenty of fuses, scope, signal generator, etc. Find out what tubes and parts it needs and buy them right here at The Fester at peoples prices.
If its an R 390A or a KWM-2 get a free alignment as well. Slug racks, crystal deck, BFO neutralization, antenna balance trimmers, etc.