Here is another take... look at it as an antique. Depending on your wallet.. make a reasonable offer. They'll be glad to get rid of it from their lot.
Then you spend 10-40K on restoring it AND You'll have a one of a kind. Put it on E-bay and make big bucks. I don't know if that'll work but there are folks out there that like antiques, with big bucks.
This is not a viable RV but an investments, maybe.

Trying to cheer you up...

carson FL