OK, how the wire harness was made, I don't know. It came with the EZ via PIF. With the parts I can duplicate it no problem. There is a legitimate plug that connects to the EZ jumper pins, there is a common row so you only have 4 wires. The back plate was drilled and a rubber grommet was used, in this case I would make a replacement plate with some fudge room. My replacement Edge was a little different.
I have switched on the move one time, and really did not notice anything, probably because the boost requirements were met. The rest of the switching was at idle.
I will need to get with the guy that made the original harness to see if the parts are readily available. I made the unit for switching, and the switch and box were obtained from Radio Shack. Lighting should not be a problem, just another power feed to the switch, and a higher cost of goods.
I may have to order a minimum of the OEM data plug connectors. I have no idea of the price or how many yet. My source thinks it might be five each (male and female). If this is so, I will need at least 4 other EZ owners to borderline commit if I am going to make the switch units. I will try to get a shopping list made up to get a total parts cost and a labor cost.
Of those semi interested, how much would something like this be to you? "This" being a small box with either a rotary switch and LED's, two rocker switches (one to select position 1,2, or 3 - and the other an on-off), or a combination of both. I only ask because cost may be more that people are willing to pay.
Better safe than sorry, PM me with the $$ to avoid TDR fiscal rule violations.
On a side note, anyone interested in a copied (read - duplicated from a purchased) high idler? Yet another person I know is working on that one.