I think your wiring scheme is probably very do-able. The nice thing about Jaguars is that they give you lots of switches and knobs to custom-wire. I had a pre-amp in mine for years, and I used the stock switches and knobs to control the pre-amp's gain range, and have two seperate and different-sounding output channels. I've recently had my guitar re-wired without the pre-amp, and I have the rhythm circuit able to "hear" whatever pickup(s) I select, and I've also got both pickups on in series (great tone!), when both pickup switches are in the "down" (formerly "off") position.