Consider alternate routes. Good one.
Once north of Edmonton any alternate routes are rapidly reduced down to Alaska Highway or nothing.
North of Watson Lake the Alaska Highway is it, unless you want to consider the Campbell Highway, which is 300 miles of mostly gravel and only two places for fuel on a very very little used road. We did it last month.
Doing the Alaska Highway is not going to the moon but it is not like using some of the little used roads of the lower 48 either where you are never far from fuel or a cell signal.