I bought a '61 Airstream Bambi in 1998 for $1100 from a car dealership! It needed cleaning, but was otherwise ready to go. I've spent less than $2k or less on a couple of my trailers. They needed some fixin', but were generally camp-worthy when I got them. Sometimes cash talks!
Not too terribly long ago you could buy older 13' FG trailers all day long for $1000. Folks would line up to sell theirs to you! There was an original Boler for sale
here in Iowa this summer in original, clean condition for $850. I probably should have bought it. Alas... with the Internet and the popularity of FGRVs those days are coming to an end.
He may yet get lucky.