You want to move to Thailand because you can live cheaper than your home country?
Do you think you could like in a place like this?
Granted owning land is not possible for foreigners, but if you had a Thai wife and purchased the land, you could build a house like this.
The cost of this house would be in the US $10,000 range if built with local labor.
The truck? That will cost you around US $30,000.
Most westerners would need electricity (if not available, solar has really advanced here).
Water in the form of a well.
Most wells can be dug for a cost or around US $1,000.
If you can live like this, yes you can live very cheap and if you have a pension/social security payment each month, you could probably afford to travel anytime you wanted.
In Thailand, no one cares how big your house is or how much money you waste on it.
If you can build something that suits you, you can have everything you need!