Becoming a Full Year-round Camper in Upstate NY-need advice?

So I am planning on selling my home and living in a 20-23' camper which I have not yet purchased but looking. I live in Upstate NY where it snows alot and can get below zero in winter. I am currently working on a degree so I have to stay here for another 1-1 1/2 years after which I plan to travel with my camper and hopefully settle in a warmer climate. I am planning on insulating the exterior of the trailer, that is go right over the exterior with foam insulation then cover with metal roofing and install small energy efficient windows and door in place of the typical trailer ones. I also plan to build an angled metal roof. I am considering getting a wood stove installed and using a combination of wood and propane for heat-if thats possible. I am considering a compost or incinerator toilet and getting solar panels on roof, also a tankless water heater. I basically want the trailer to be capable of off grid if needed but also be on grid if electric and water are possible-one big issue is where I will park it. Warmer months-April-Oct. I can use campgrounds but Nov.-March my only options may be to rent an outside lot without any water or electric hook-up or rent a space inside a heated barn or other storage. I am trying to set up the trailer to work for both situations. I also need to buy a tow vehicle that I will also use for basic transportation, wondering if a Jeep Grand Cherokee would work? prefer an SUV over a truck but will consider a small size truck if needed especially since I plan to eventually tow quite frequently. Any advice for this novice would be appreciated