Just so's you know, I went from this:

To this:

The electronics are all brand spanking new, I worked from the ground upwards and all that. Surprisingly much simpler than I expected it to be. Sounds chunky as fuck. And because I didn't cannibalise anything from the other pickguard all I need to do to swap it back over is to de-solder the bridge ground wire and throw the other scratchplate on.
This axe is now the spirit of rock and roll.