As I do not think we will not move again, we are indeed looking for similar land.
As long as the Puyai Baan is informed / approves and you do not build bigger than 100 m2 one floor, or get a full building permit, would not expect too much of a problem.
If you get properly constructed wooden houses, you can move the houses, pumps etc. in case of being evicted. Just make sure the houses, building permits etc. are in your name, not in the name of the signatories on the land document.