Using the R/T ring, I located the a suitable visually appealing location, and marked the center of the rings opening.
Measured the DEEP nut (needed for a Switchcraft switch), and found it was just a bit bigger than my closest forstner bit. The next larger bit (in my set) was too big.... so
I made the hole using the very slightly undersize bit, and eased the hole just a tiny bit larger using a sanding drum on my dremel, carefully holding it square to the body.
The pass thru for the wiring is at the back of the bridge pickup route. I enlarged the existing hole on the lower side, and made (VERY CAREFULLY) a new hole on the upper side. The wire was passed through from the pickup route, into the upper and lower chamber areas.
I attached the wired to the switch, keeping track of the colors used for what. Then I lost the notes..... So, later on, a few seconds with the DMM said, ok this is neck, this is bridge...
The tip was removed from the "shorty" straight switch. I passed some monofilament thru the hole I made, and fished it out of the f/hole. Then the monofilament was tied to the switch lever. The switch was passed thru the f/hole. The fishing line was pulled gently, and the switch was pulled into its opening. The washer and nut were slid down the line onto the switch and tightened. Done. Line removed. Tip put on.
The only thing... is ya gotta be careful of any bare wire ground etc. I just used the "green" wire for ground and removed the bare, that way if the switch and wire twisted, I'd not have shorts on the leaves of the switch.
That oughta get you by. I thought it would be a pain in the ass, but it wasn't.