Hopefully I won't be hated for this, but I've done two rethemes of Grand Prix machines. Now in my defense, the two playfields were pretty trashed, as were the black glasses (well, one not terrible and still have it) and the cabinets were not exactly great either. When I did these, I actually had a third playfield, and the third playfield which I still have, is in really good condition. That playfield was missing several mechs and one of the steppers had a fried coil, my best guess is that coil fried early in its life and it was pulled off location and then cannibalized.

The machines were re-themed in honor of a summer camp I used to work at, that was celebrating its 100th year. I had been wanting to do a retheme for it and played a buddies grand prix and immediately knew it was the perfect game (the row of lights would perfectly as 'bunk row' and 'tent row'). Given that is was celebrating a 100th anniversary, an EM seemed like the right thing, plus it would likely hold up better to a bunch of kinds banging on it, and that was a goal as well, to introduce 200 kids aged 8 to 15 to real pinball. The kids loved it.

The spinners, which look like the plaques the kids get at the end of the year that show what they did, rotate through activities, so Icons representing those, so as you do them, you advance up bunk or tent row)

Below are a few photos (I've got plenty more photos of the steps along the way as well as close ups of various sections, if anyone is interested, but did not want to upload a ton) . . . the first is proof it was a trashed playfield (second one was not quite as bad, but close enough)

If anyone has questions, happy to answer them. Again, don't hate me

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exactly, not like you would really want to use this vs a chime box. Adding a solid state component to an EM, yuck.

There was some small quantity made with this board, and was not long after this that the solid state era began. I have had three GP and one had the SS board, which I yanked out and put in a chime box.

There were 5 solid state prototype versions of the game made (the only system1 game), oddly enough those had the chime box and not the SS sound board.

When I pulled up this thread there was an ad for replacement faces that was showing up on this page . . .

https://pinside.com/pinball/market/shops/1167-gameroom-mods/04551-reproduction-target-face-a-7073-1

Obviously replacing/riveting faces not quite as easy as putting on a decal.

I’ve had three and all had red.