Wish I could help with a diagram, but fortunately it would have been wired standard for a 1V-2T dual humbucker guitar equipped with seperate coil cuts and phase-reversal for the bridge pickup.
Any good shop should be able to wire it back up stock using the original pickups. Any shop that is proficient in custom electronics could handle it, but forget the Cacaphony Palaces. Without having access to one I would have no idea how to wire the pickup leads but the rest is easy.
The 2588 I had also came with messed up electronics and the preamp never worked. Thanks to a couple of folks here on the board tossing me some info and pics I was able to hash out the diagram and wire it back to stock once again.
Where on earth did they get that $700 from????
That sounds like SuperPawn's doing to me. They had one and claimed the list price was sometihng like that, which is way off base! I called them and asked them where it was made, what store sold them new (both answers I already knew), and most of all where that list price came from and all they could do was hem-haw around. They finally hung up on me but it was worth the long distance to listen to them squirm and stutter!
Those guitars were liquidated through the JCPenney catalog back in the early 1980s.