I noticed in parts of Az, new Mexico and Texas what appeared to bee empty structures with shed attached for an RV, no power no water.
In Big Bend area saw quite a few from the Interstate, where you can see for miles.
Not sure how deep a well would have to be and filter system added.
Power from coach generator for short periods but solar,though costly, would be a much better situation.
Do it yourself maybe not too expensive but getting someone to come a hundred miles to do anything would not be cheap.
I'v had the same idea near Lake Huron on in Canada on Superior.
Concrete pad done nice with patio maybe rock tiles on top.
Well and casita, with generator inside and buried propane tank, if allowed.
Weather being what it is up there, just have a hookup to coach generator to power up pump to fill storage tanks on coach.
Sewer would be bear I think, in Canada, have to have a tank that is pumped.
Rock won't perk worth a dern and digging it requires a lot off dyanmite or something. I'm sure Folks up that way have a handle on these things.
Bassicaly how much have the dumb Americans got in their bank account. :)