A gOOgle search turned up a writeup only on the fabled GMC Class A with Toronado front drive and tandem rear wheels. It DID show a couple pix of Class C's. The two I saw had the "Mini" labels showing, but the houses looked like they were made by different RV builders. Completely different cab-overs. One had the typical seamed front cap, the other had a molded fiberglass cap. I think siding material was different too.
Just shop it like any used RV. Chassis problems can get pricey but can also be dealt with. It'll likely need tires and brakes. If it has 16.5" wheels you might want to replace with 16". But if the body LEAKS, it's a loser.