Ok, now for a very boring part for all those here who have done it 800 times. Time for a new CPO.
After the adventure sticking the pinball overlay, this was going to be a walk in the park.
The original was in a pretty bad state:

Removed all the controls and harness:

Started removing the overlay. It was much more time consuming than I had anticipated.

The leftovers...

And finally, the blank control panel, with lots of goo, but also rust here and there, which bothered me:

To remove the goo, I used Acetone, which is a boring name for what it is: A braincell killer.
But I suppose nobody would buy it if the label called it that. Powerful stuff. Does make you dizzy.

After scrubbing with the acetone and then sanding, it is ready.

Because I had had rust damage on the CP, I decided to prime it with Hammerite, if you can remember me using it on the coin door.

NEVER DO THAT!!! It does not hold when you spray over. I sprayed a coat of black acrylic over the Hammerite, and the whole thing crackled up and started desintegrating. So sanded the whole thing down again.
My second spray session turned out badly too. Sanded down again.
The third session, that included antirust in the paint, at last came out to my expectations:
