I had a Nash and now have an Arctic Fox, both Northwood.Have storm windows for both which makes a huge difference. Been to zero and a bit below a number of times with no problems.She will need a generator if no hookups. Don't forget chains for the trailer. You may never use them but, in most states, if they are required, you need them for the trailer too. 4X4 is almost a necessity for tow vehicle. I've used 4WD, low range when descending mountain passes with snow and ice. It allows you to roll along nice and slow. Northwood encloses the dump valves in the tank compartments. If the valves are exposed, they will freeze.