A huge piece of the puzzle seems to be whether you intend to be above treeline or below.
Below treeline; screw it! You have ample wood to burn. 2 Mylar space blankets and cordage offer excellent shelter during the worst of the night.
Above treeline requires a fuel supply and a w/g stove, imo.
Clothing is conditional to the above contexts, but hardshells really aren't that hard to come by. Insulated layers are prerequisite and supported well by a decent fire.
