Build is up and running again - the bridge fits now. It's a little too snug right now, so it's difficult to get the bridge low enough - needs to come down about a mm or two for the action to improve. The bridge is a couple of mm off the body.
The neck is set. The angle of the neck on the stock kit was a little off meaning the angle near the bridge was way too high., I corrected it with some masking tape (about 3 layers) underneath the neck.
Going to start working on the circuit now. Seems like it will be four push pull pots, one rotary switch and one kill switch.