I'm playing around with a Precision - it's a Squier body & neck at the moment, with miscellaneous other parts including a Badass II bridge, a Shadow pickup (the Squier ones were too quiet) and my pots & socket wiring, but the plan is to replace the body (maybe with a Warmoth?) and the neck at some point. When I've done, I guess I'll reassemble the Squier and either start again or sell it on.
I've got conductive tape for the cavity (and underside of pickguard) and I'll probably put a layer of insulating tape or plastic film on top of that near the socket.
I've also using little gold connectors to join the pickups and the bridge earth, so I can easily swap things around.
I have thought of trying a Rickenbacker pickup in the neck position, since I've got a spare one...