I lost my first airstream (1978) to a tree. Being in Georgia my tree was a Pecan tree. The insurance company totalled it with no hesitation.
I have a slight regret that I did not try to buy the totalled unit since I turned around and bought a 1979 in need of restoration shortly after. Although it pains me to think about process I think I might have bought the totalled unit if the price was right, I had storage and I was buying a similar vintage unit.
Currently I have a 1986 Soveriegn and if I had to replace it today it would be with another 1980s or early 90s. If you have the same respect for that era of trailer I would consider buying the trailer from your insurance company. I bet you could find enough buyers of parts on the forums to almost pay for the unit.
1986 Sovereign 25' CB
2007 Chevy Silverado 1500
2007 Toyota Land Cruiser