Because you live in a colder winter climate one of the most important things you can do is make sure you know how to properly winterize your Airstream before freezing weather sets in.
We loaned our older
1968 airstream to my sister-in-law up in Idaho (we live in So. Calif.) and she didn't winterize it. It had copper piping which expanded and burst in many locations, some of which were totally inaccessible. She took it to the Airstream dealer in Boise Idaho, and they charged her almost $1,000 for repairs, and the plumbing failed the first time out (they used clear plastic tubing for the piping repairs.)
The estimate from one dealer here in So. Calif. to repipe was $3,000. So, I have it in the back yard, with our other Airstream, and am in the process of repiping it myself with PEX and Sharkbite fittings. Also replacing the water heater as it's old, and the Boise Airstream dealer didn't secure it's cover when they did the repairs, so the cover was lost somewhere between Boise and the Oregon coast.