I started getting the switches and horn button remounted today. Couldn't find the 4th switch, so contacted my buddy (who had set up everything for the splash) and he dropped by. After he crawled under the dash he said "Oh yeah, there was a switch which wasn't connected to anything." So he had trashed the grody old thing.
I ordered a DPDT switch a little while ago and am now searching for panel lights for 3/8" mounting holes to go at the top of the console. I'm planning on putting red LEDs there to indicate which switches are active. In the center hole, I'll have the LED connected to a loud buzzer/horn which will be connected to a water pressure loss switch on the engine.
No engine water pressure? Light comes on and starts screaming at me.
And I'm also working on seat height. The seats are way too low and I need to figure out a good height, plus a way to extend them up.
