I think there is a Law that gives the owner of a machine "the right to restore", or something like that. You can produce for your own game.

Years ago I ordered a set of Pro Football "flipper bat" decals. PBR had run out of them - "Out if Stock- Sorry" ! So I asked WHEN the next "run" was scheduled. The response was "When there is enough interest" - So I asked if I could make my own set - and I was given permission to produce my own set of decals for my own machine - No problems at all.

I also asked if PBR had the original plans of the Pro Football cabinet - dimension etc.. They didn't. I was asked why, and I told Steve that I needed to scratch build a base. He told me I could produce the entire cabinet, but the moment I made a surplus cabinet tom my needs - He wanted to know.