I have been in Fairbanks when it was nearly -60 yes, Sixty BELOW. and it can be -40 for weeks at a time.
Now here in ND people are living year round in all types of RV,s but it's never that cold (-60)
It would take a lot of extra work to protect your RV from that, Electric tape on the pipes might not even work at that temp. even with a skirt.
You may have to skirt it and run heaters 24 hours UNDER the unit. And at Fairbank's electric rates that would cost you about the same as an apartment.
I think this comes under the heading of Penny Wise and Pound Foolish, but good luck!