That would be a cool project. That old BC Rich I picked up has a great sounding, simple little 2N5088-based pre and varitone circuit on a board...
That sounds interesting, any wiring diagrams handy?
I was thinking of making a preamp for each pickup, so I'd avoid pickup interaction when I use both pickups on. I'd probably put the preamps after the pickup volume pots so I can use 500k pots for both active and passive mode. I know its (slightly) better to put the potentiometers after the preamp, but then I would be commited on using 50k pots, and those don't work well on passive mode...