If anybody wants to attempt such a rad little travel trailer conversion, I know a guy with several in-need-of-work Airstreams (not sure specific model, but the "iconic" classic -type).
Last spring, Owner literally cut both ends off the crappiest trailer and made it into a bridge across one of his littler creeks (please buy his Airstreams — the neighborhood/environment would appreciate it).
And yeah, the battery prices keep coming down. It's really amazing to watch in real time. A 100ah 12V battery used to be ~$1000, now it's a fraction of that. And 400ah 12V batteries are becoming common.
But, the rest of the electrical system isn't cheap... solar panels, MPPT controller(s), fuse panel and things, control panel, etc. If you need 120V, add an inverter. If you want 120V AC, that inverter needs to be pretty big. Etc. Probably looking at $10k+ for my dream system (granted, that's down from $20k 5 years ago).
Not yet; he has to die first.
But I will do everything I can to not become that guy (if inherited).
Her overall recommendations tend to recommend older, well-taken-care-of models over the newer less-expensive trash being mass-produced. Get a PROFESSIONAL INSPECTION before purchasing any RV particularly if your first purchase, and buy from a local person (instead of a dealership).
Really loved that some of Liz's most-popular videos weren't about RVs, particularly her Introduction to Electric Bicycles (helpful as we've gotten older).
By least-favorite brother (maker of terrible decisions™) lived in an RV for about two years, and it was absolutely embarassing to the neighborhood... just a squalor'd pig-stye.
If anybody near Chattanooga wants to restore an old Airstream, I know a guy... [that owns a dozen, variously delapidated]