I could be wrong but it seems like some previous versions of Standard Changemakers used the same basic cabinet. Remounting your still good components might be with minimal modifications. That more likely opens the
door to possibly a used Ebay or other online auction "used" good buy. You might want to make some quick calls to some laundromat owners or former owners in your area just in case ... there would also be savings on freight. KR is in Texas you might get a free freight by either pickup or whatever since they also can get the cabinet.
When it comes to expertise though ... on that MEI acceptor inside
changer you are referring to ... Randy could be your best bet especially now that he has stepped up to the plate.
Some operators cannibalized & are selling the internals of their 500 & 600 series ... not sure if some of them have their cabinets available too???