Ron, Thanks for raising this question.
I'd like to know, also, if these interior end caps are structurally necessary, or are they cosmetic?
I'm thinking about replacing the rear fiberglass eventually with aluminum as part of relocating the rear bath and converting to a bedroom. The one-piece design is nice and clean, but I like the look of the panels outside repeated inside. I don't need the trailer to imitate a home, but to be something else, a retreat and playful space.
1968 Airstream Trade Wind
2005 Chevy K1500 crew, reg. bed, 4WD, gas