Alright here is the real deal.
I regularly find my self driving in temp that reach as low as -40 several times each year. At this time of year and for the next 6 months my city averages a temp of +1*F.... Block heater to heat you oil is almost a must unless you have an enclosed (heated) place to park... that said you are not going to be spending 6 months a year putting up with these cold temps.... 3-4 cold starts shouldn't do much damage but it only takes just one cold start to have something happen...
Another thing to consider is how fresh your battery is, the older weaker batteries that function well in warm weather quickly die and freeze up in a little as a few hours (once frozen they can be toast)... make sure you have a good strong battery with lots of cranking amps!
Carry a complete set of extra clothes, a candle, matches... fire wood might be over kill but fire starters and a small hatchet would be more useful.
A small set of tools, jumper cables, tow rope would be highly recommended as an added bonus to your kit.
The sketchy part of your drive doesn't start until you get North of Fort St. John, BC (if that's the direction you choose) loads of people living up there and driving the road as there is a booming oil and gas industry up there! so that leaves you with about 1,500 miles each way that would be moderately sketchy.