I guess my aluminitis will be showing here, but I would spend a lot of $$ to have a family trailer restored to use. I would consider this to be an heirloom (sp: Airloom? Heh). You can collect stories of where it has been from the donating grandfather, family photos, etc, and piece together a history of the family AND the A/S. Judging by the number of Airstreamers who send in the ghost numbers on their vintage trailers requesting names of POs and history, a lot of us would love to be in your shoes.
I say, go fer it!! Make a new frame and fix it up, get it on the road again!
Richard and Vivian
Caliban The Wonder Dog: gone but not forgotten
Too many vintage A/Ss...