john_kidder said:How many options are there?
If I were back in my lab, I'd ask someone to make a replaceable switch assembly for a test bed. Might there be a stock switch plate that fits close enough, that could have holes drilled, switches mounted, etc.? Find a suitable jack for the wires from the pickups, with a corresponding plug from the switch assembly? Then one could swap assemblies in and out at will.
I will get a cheap new binding on the back just to hold it together. Then, when you have figured out the options and a plan of attack, I'll start the guitar on its way.
I don't know if there's a stock assembly that'd work, but a piece of blank pickguard material should be easy to cut to shape: basically just a rectangle with rounded corners, plus whater holes/slots for new switch(es) and pots(s).