Whelp I already ordered the pickguard and middle pickup. Just need to find a decent deal on a Demon for the neck and pony up the cash for a new 59/C because they're not too easy to find used, the the hardware and get working on the routes for the humbuckers.
EDIT: For anyone wondering, I'm going with option 1. See you on the other side
Why not simply change to a body that is routed HSH or swimming pool to begin with? Leave the AVRI to do its SSS thing rather than mess with its existing natural resonance.