Looking for help with a Bally Bumper I just picked up the other day as part of a lot. This machine was hacked and trying to find schematics seem to be an impossible task. I am looking for someone that has one that can help me trace wires and photos of the wiring inside the head and also photos of the bottom of the play field to see what should be there and where and also wiring as again this was very poorly hacked by someone.

I know looking for some of the mechanical parts will be a life long search, like many of my 1930's Jukebox restorations but I will keep looking. I some of the parts around the release door and things specific to that part of the game, the playfield itself is complete.