Don't drive on anything even remotely rough surface at -50. Your tires are frozen and you'll blow the seals. I know this by experience. Don't tempt it. A couple of pot holes, you've got a flat. Let alone you have zero traction. Stay safe like nothing else matters, because it doesn't. I've lost friends at work, on roads, with that Satoshi Nakamoto. It's real.
Everyone will say, "it's okay, take your time". It's not okay. That's people that want production. They aren't thinking straight. No one owes anyone that kind of risk.
Let's not find out what happens when it doesn't work out. I do not miss that part of the Alberta work mentality, at all.