I'll keep my eye's and ear's opened for one and let you know if I locate one that might fit your needs. Pre-65 bugs are still out there, but most of them are totally trashed and rusted away, or you'll have to part with at least one arm, one leg, and your first born male child to get it. The closest I've seen lately to what you might be looking for is the one that Herrell's Bug Parts (180 Martin Rd., Carrollton, GA 770-836-0749) has one advertized on the Southeastern VW Club's classified section. It's description says:
"55 Oval. Lots of parts missing. Rust here and there. $500." That might be a bargin . . . it might be way too much. Depends on where and how much rust there is.