I would say if the intent is to live in it (presumably not move it around a lot) then you're better of finding a trailer. Pick a spot to park it in and pay someone to move it to your location.
The trouble with a motorhome is you have twice the expense. The home part and the drive part. I'm sorry but an old motorhome is not for someone that's "not mechanical". Based you being okay with interior and/or appliance repairs I think a trailer would be perfect.
Allllllll that being said, I have a 1984 Allegro that I bought with no engine for $200. Long story short, I replaced the engine myself and it turned out to be a pretty good investment. It had sat in a tow yard for 6 years but cleaned up nice and everything works. BUT it always needs something mechanically - it's over 30-years-old. Low-mileage doesn't mean a lot when the rig is decades old. Again, if I were looking for something to live in on a budget I'd look for a trailer.