A long shot, but here goes. I've got various pieces and not quite complete parts (or a couple damaged ones needing replacement). All of these things are for coin doors.
1) Nintendo alumimum single slot coin slot bezel. The single piece that the inside assembly screws into. (Frogger/Sega may be similar?)
2) Nintendo coin return U loop. Attaches to above bezel where coin falls out if rejected.
3) 2 quantity STERN coin door frames. I have the doors, no frames.
4) 2 quantity Bally Midway grey plastic coin drops. Not the chrome ones, the later model grey plastic ones.
5) 13" and 19" Horizontal or vertical 3 piece monitor frames (two sides plus cross piece). The more the better to save on shipping.
All of these things are rarely even listed on ebay, i've watched for a while (probably too little interest).
Let me know if you have them and what you want, including shipping (via the least expensive method, eg. 1st class, parcel post, priority mail or ups ground--whatever you can ship by). my zip is 58104. Thank you!