Yes it seems the vinyl-coated cabinets are pretty much toast. Sometimes I'll use toasted cabinets for making other things. A pair of L20T's I turned into floodlamps for the living room, never got around to making a reptile tank but it's on the list
The 2231A's inside them were a nice find for only $12.50 each! But alas, they're in pretty bad shape alignment-wise.
I can't find that grille design on anything but the Valencia. Sansui and Realistic appear to come real close from some google searches.