Most likely you will need to find some out of the way locations, far, far away from large cities/towns. If you don't you will be fighting a lot of possible zoning and or deed restrictions.
Even where I live is rather rural, but many people have written deed restrictions prohibiting mobile homes which a RV could be lumped into this category.
Years ago my plan was to buy a small piece of property, move a mobile home that was paid for but was paying lot rent on, live in the mobile home a few years while we built our house..
The problem with that plan was #1 every property I looked at was considerably more expensive than expected. #2 Deed restrictions prohibited mobile homes. #3 The few properties that had no restriction usually required a 10 mile drive down a dirt road from a paved road access.
This is done because folks either don't want property values to drop and or trying to squeeze the max value out of the land.
Ultimately ended up finding a small house on a couple of acres and abandoned the mobile home idea. Fortunately my property has no deed restrictions nor any HOA to tell me what I can or can not do. However since my neighborhood has no restrictions I can not "control" what may neighbors may or may not do..
Additionally in my county in order to sell less than 10 acres you WILL be required to have Perc test done for septic EVEN if you do not want to build..
Read and understand the entire deed contract before signing.
