I visited the folks who own this Airstream this past weekend. Very nice folks who live near Show Low, AZ. They bought and stripped out this Airstream for a family member who has severe allergies (this person changed his mind about using it, so they don't need the trailer anymore). And when I say stripped, I mean stripped. Subfloor and bellypan, gone. Insulation, gone. Tanks, gone. Even all of the wiring has been removed. This trailer is just a shell now, so you can see everything (both the aluminum and frame looked good). They have almost all of the internal parts (walnut interior), except for what I bought from them. If you need parts from this era, I would contact them. I know they would sell the frame and shell separately (this was a side bath unit), but not sure they would part out things like the windows. Who knows? I would just ask. Here are a few pics and their classified ad:
Airstream Trailer & Airstream Motorhome Classifieds - Gutted 1974 29ft. International - Powered by PhotoPost Classifieds
They can be reached at 928-739-4813.