Maine's a beautiful State for the fair weather camper. Loved those Whoopie-Pies. 60 years ago, I lived 30 yards from the outhouse and 8 yards from the well and hand pump, but south GA and north Florida doesn't get quite as cold. I vaguely recall when elctricity was wired into the old farmhouse with a few drop cords and the handpump from the well was moved into the kitchen. Still bathed in a #10 washtub with water heated on the Ben Franklin woodstove.
I've camped in cold temps in my 4 season camper with my plumbing fully operational. I've seen temps ranging from freezing down to -8° for a week to 10 days at a time before returning south. Living in an RV generates a lot of condensation in cold weather. I got through by cracking a vent, but propane use was horrendous. With an on-board LP generator, I could go through a 30# tank in 3 or 4 days while dry camping in western N.Y. With 30 amp service, using a ceramic heater to augment the furnace during the winter in Charlotte, NC where avg lows are 29°-32°, my propane use was 30# per month. During a Florida winter... well, a 30# tank of propane lasts me a long time.
With all that said, my point is this. Camping... or living 30 feet from your water source is going to create a real hardship during those 4 months or so. Keeping the camper warm is going to result in a propane bill that will approach the national debt. Not something I'd want to endure for 5 or 6 winters in Maine. Not to say that a camper wouldn't serve you well a good part of the year. However, during the winter, I'd be looking for a short term (4 month +/-) rental on a room near campus given the circumstances. Best of luck.
