Trying to restore my MCI Airball i bought, I am looking for a coin door for this? I think maybe a door from the other MCI games of that era may work? the pictures of them look the same, if you know of or have a door for sale please inform me, i cant figure out which wires to put together to just have a button also, i am looking for schematic? i have emails out to dealers to find one? thanks Whip