What am I going to do with the 4th hole in the control plate then?
Two jacks? You can choose between straight and angeled plugs, and the ctrl. plate will look stock.
It's not a preamp, just a PCB with minimal wiring and supposedly less hum and no need for shielding the cavity. It's wired vol/balance/tone - more logical to me than VVT for a 2-pickup 3-knob setting. It's either sending back the body and having another one made (and waiting 2-3 months), or living with the side jack hole. Still haven't made up my mind.
A producer's switch.
These are all cool suggestions but frankly, this is not the body that you really want. I, personally, would wait the 2-3 months.