Earlier quoted context omitted.
I mean that already exists, it's basically just an RV park, right? Without the philosophical bent and off-grid aspects, you can already find those things. I spent a big chunk of my childhood bumming around the country on vacation in an RV, and I think that's ultimately the source of my wanderlust, but it doesn't really build a community for the longer term.
There are similarities. It would be more spread out and have far fewer residents than an RV park. People could build what they want (tiny homes, earthbag houses, etc). It would also be more of a co-op compared to a commercial RV park. RV parks cost millions to build, this would be more than an order of magnitude cheaper. I've spent time in RV parks too, I like them. Even the crappiest ones are ~$450/mo in California…
I think you're dead on when you say "a group of 10 people", and that's where you have to get into building community dynamics, even for a group of hermits :)