YEAHH!!!
Just read this thread... I bought a Turtles 4P cab a few weekends ago, and youre lucky, the laminate might have given you some goo, but it protected the art somewhat (someone scratched out Aprils eyes on one side of mine.) Mine has a new CP overlay (lame and generic) and has a button above the coin door that toggles between TMNT and simpsons.
Your clean vacuumed floor is inspiring... mines thicky dusted. And I've learned a lot from your gettin into the guts! I'm not going for the classic restore but I did order a new marquee (it was a split tmnt/simpsons) and fix the light, also wanna make a new CP with (L to R) p3, p1, p2, p4 instead of 1,2,3,4. and 6 buttons for players 1 and 2 (It'll be a multigame but in an orig turtles cab. Maybe itll toggle between TMNT and a 1069 instead of simpsons...)
I wish your later pics were linked up!