I "gut" the coin doors on all my machines, makes them a lot cleaner looking if done correctly. I'm not a 100% stickler for originality & none of my machines will ever be used for coin op ever again, they are all set on free play etc. No real reason to have all the ridiculously complicated & heavy coin mech parts inside the doors anymore (at least for me). I rarely ever see anyone actually using the coin mechs in their home use machines... My machines have the absolute bare minimum very similar to yours... test switch, start switch, coin plate lights, & if it's a Stern or a Bally that doesn't have an Alltek MPU, I leave a single microswitch for quickly/easily adding credits, sometimes I'll replace the microswitch with a small pushbutton just to clean it up even more.

I've gutted 4-5 Stern doors in the last few months, but all the stuff I've taken off has been jumbled & thrown in misc parts boxes, not kept seperate. I'm probably going to list it all in one large package & take it to Allentown show to sell to someone who wants a bunch of Stern coin door parts.

Best thing for you to do is definitely buy a fully intact door from a machine that is getting parted (not overly easy to find a Stern, but they are out there, I paid $100 for a spare complete Stern door that I found off of here a few months back for a Seawitch project I'm working on) & get the wiring harness from the door running to the connector that the door harness plugs into on left side of cabinet about 10" in.