Success!!! I finally got around to finishing this project. I am delighted with how well it works. Thanks, Nalc, for the guidance.
I ended up buying a new center console so it could hack it up offline. I alb wanted to start with a console without the heater switch cutouts so I could leave as much material as possible t reinforce the button panel, which is fairly thin. I did a bit of a hack job to cut the holes frothy sbitches, but it doesn't matter as they art covered. I took a picture of the underside with the resistors soldered onto the switches. Sorry I didn't take a picture of the wiring harness attached. Basically I used three 22awg stranded wire and attached the with spade quick disconnects (3/16" fits the switches).
Relocating the seat heater switches to the center storage worked out pretty well (took a hell of a lot of time though filing the hole just right). They're slightly loose cause the stock material quite thick enough for the switches. I installed the armrest at the same time so the heater switches are tucked away out of sight.
The switches fall right where my hand naturally rests with my arm on the armrest. I am fairly tall so ye might be a bit far back for some.
Happy to advise if anyone wants to replicate.
