I agree with the poster who suggested getting a large travel trailer. I know people who do not have a tow vehicle, but hire a company to move their RV when they go to a new job site. They are travel nurses but it wouldn't be any different for you. It's much less expensive than owning and maintaining a tow vehicle.
Depending on your budget, you might look at Cedar Creeks Cottages. They are very much like a park model on the inside but are towable. They are designed for people with seasonal lots or permanent pads on their property, but they would certainly work for someone who wants to move it infrequently.
There are so many ways to make this type of arrangement work; good luck.
