Like already stated, motorhome manufacturers really don't make motorhomes. They assemble them. Almost everything on a motorhome is made by somebody else and just assembled by the manufacturer. There are some exceptions to that where the manufacturer makes the chassis.
My National tropical is an orphan and the only thing I'd have a hard time replacing would be the front or rear caps. But I can't think of too many ways those would get damaged that would not be covered by insurance so it's my insurance companies problem to figure that out if something happens.
