I'll probably move onto some woodland on the next few years, try putting a trailer in there, see what the neighbours will tolerate. Getting somewhere with running water might be difficult, there's a lot of people where I am looking for the same thing and discrete little shacks popping up as people repopulate the countryside.
I've had various stints living off grid, the longest being 4 years in Wales. Wales was the most organised... wooden house built onto a showman's wagon, bore hole, veg garden, pot plants, 12 volt system, woods, chickens, the lot. I must admit though, the cabin fever got quite intense in the winter and living somewhere so remote social norms kind of slid away.
I'll try and stay in the sunny South West next time, Wales was cheaper, more land available but it was tough going, cold, remote.
I had a couple of years living in the woods, before I knew I was autistic, it was primitive, I smoked pot and drank tea, cooked on a woodstove. It was nice being in the shade of the trees, hiding out, drinking coffee by a fire looking at the stars, sleeping when it got dark.
I'd say all in all that kind of lifestyle in this modern age is good for healing, good for a spell. If it's something you plan to do for years it probably helps to have some community /community project going on.
I'm not sure how my plans will pan out, it could be great, it could be a quick route to depravation and isolation but there's no guarantee I'd fare any better in a town.
Good luck with your own plans.