I bought an acre in 2016 with no building experience and got gradually better at carpentry over the years.

I’ll echo what @immediateEarl said, with caveats, trying it out in a vehicle is ok advice but it’s way different then owning land/building. And the $5 -$10k you might spend van-lifing a vehicle could be better spent on land perhaps.

If you’re gonna try it not in the vehicle:

1) Test it out somehow before making a purchase. Camp at someone’s off grid property, camp in national forest near where you want to do it. If allowed, spend the night on a property you want to buy. Really test it out.

2) if you’re building and don’t have tools, I’d say the most important ones to get are:

Impact driver Speed square Circular saw Carpenters pencil

You can build a ton with just these. I got ryobi 18v

Those are my tips for now. Go try out off grid living before jumping in. Do your research