I think it is going to be hard to pull off too.
Staying warm in the winter isn't going to be your biggest problem.
Here in the Marcellus Gas boom area, numerous man camps have sprung up, and many over winter in RVs without a problem. They, however, are being paid a handsome per diem from their employers and can afford to crank the propane and electric heaters.
You can keep a camper warm through the winter. The question is, will you be able to afford it while using lot's of propane and/or electricity.
Then, you have to heat the water line coning up from the ground with a heat tape -more electric.
Work camping may be you best option. That is usually seasonal. Maybe you will find a campground owner willing to keep you hooked up as security through the winter while they snowbird?
Good luck to you.
