The original controls were in bad shape, and there was only 1 button per player, so games like
elevator action were unplayable. I decided on 6 buttons for player 1 and 2 buttons for player 2.
The 1&2p start buttons have LEDs to indicate when there are enough credits to use them.

I ordered the parts online from Happ Controls in the US. It was a simple matter of cutting &
drilling a couple of bits of wood, painting them, then mounting the controls.