Been there and I can tell you it may get 2 cold for a camper that is not properely insulated. Lived in a US Army doublewide, artic insulated trailer and during a storm the gas furnace
could barely keep up (Langdon, North Dokata)
Moved to a new (Army) house in Langdon and had 2 furnaces and they barely kept up during the -30F below.
Had to keep the cabnets under the water pipes open so they would get some heat to prevent freezing.
Here is my recomendations should you do it:
Put heat tapes on all water lines.
Put heat pads made just for this purpose on the bottom of the gray and black holding tanks and on the fresh water tank should you use it.
Insulate the water pipes over the heat tapes. I did this when I was in Maryland for 5 years fulltiming
I purchased flrxible water pipe tubing and connected it from the water supply to the camper, heat tape and insulation. I don't think a plain water hose will do it. Might not B able to take the heat tape as it is insulated and may get 2 hot and melt the hose.
Skirt the bottom of the camper to keep the wind out.
I used 2 electric heaters (Had 2 run separate circuits from the power boxes in the park) and also ran my propane
heater. I rented large tanks from the local propane
company and they came around and filled them on a schedule.