Marco's is expensive enough at $89, but $110 is really pushing it.
Put a want ad in RGP, Pinside, and Mr. Pinball Classifieds in the US. With time I wouldn't be surprised if a used one pops up for a heck of alot less than these prices. Shipping for this using USPS First Class mail would be about $20.
I just had a look on Mr. Pinball Classifieds (parts section), and just search on "coin door". There are already a few matches there, one guy is parting out a Night Rider EM, and a coin door is listed. Just ask for the skin, not the whole door, and you may find what you are looking for.
