Thanks for the comments. The design was something which has been evolving ever since I started. No one (who I could find) ever built anything like this so I was on my own. The picture I include is quite old. The project is almost complete ..... I just finished wood putty'ing and sanding yesterday. The shifter panel has already been completed....it includes the following:
- 4speed shifter
- 3speed shifter with turbo
- 2speed (forward/reverse) shifter with turbo (return to center)
- 2speed shifter (low/high) with turbo (not return to center)
- 5 player buttons
- 5 configuration buttons (Pause, Esc, Enter, Tab, Reset)
- 2 player start buttons
- 2 player coinUp buttons
Yeah, I know, I went overboard on the shifters, but they look great and will allow the player to choose the appropriate shifter to use for the game. Everything will be wired via USB Microsoft Dual Strike gamepads. The Pole Position 360 wheel will be a USB mouse hack.
The driving arcade seat came from an Indy500 cabinet. I was looking for an authentic arcade seat which allowed the player to adjust the seat position. I found a couple of people who would give me a seat for free but shipping would be crazy (you could imagine). Then one day I found a vendor who was a few hours away and who happen to be located next to the city where I was going to vacation soon. It was dumb luck. He had 3 seats and wanted to keep two of them for some conversion he was going to do. He let me pick which one I wanted out of the 3 he had. I basically just picked it up on vacation and brought it home. Works great...

I already bought the Mad Catz Universal steering wheel so this is the one which will be used. It came highly recommended the couple of times I asked around for ideas. It seems to work fine for me (and my young boys).