I installed the under dash support aluminum. It is rivited to the bottom of the dash, and I used self tapping screws into the 2x2 frame rail. This makes a huge difference in how sturdy the dash feels. I attached the radiator fan switch to one (under the steering wheel, on the left in the picture). I attached the DC outlet to the other.

I picked up some diodes today, and finished all the wiring behind the dash. I also fixed the 3 turn signal lights that came with the wires hooked up backwards. I tightened down the ground and fuel level sender feed on the fuel level guage, and that appears to have fixed one of my fuel gauge problems. The other problem is when I drive the guage goes all over the place.

For now it appears that all the wiring is DONE!