Jerry,I could build it for that or less by using salvage. Note that it's a gooseneck trailer. Probably a former (urine-destroyed, horse trailer/tackroom or wrecked race car hauler. If she used 2x4s and sheet rock for those interior walls, I have to say that she could have built it better, lighter and with with more interior volume. She designed it like a long hallway. Not a pleasing living space for me.
piperpilot,Yeah. It looks like my buddy Rick's Kitfox. (Who just drove 2,400 miles round trip in 4 days to go get a new motor for it in southern NM.)

My goal...
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...is to live in a trailer.