Should it stay or should it go? (MA rebuild help)

Sounds like your TC is very re-buildable, having no internal damage and aluminum siding.

Hopefully someone has a suggestion that's in you area.

If you don't do this type of work yourself your local RV dealers may have suggestions for someone who does restoration / re-build work.

An RV dealer may even assess the damage and make you a package price although they may delay the process until the winter month when they have less work.

Have you thought about teaching yourself a new skill?