I agree that hiking that distance would be a tremendous challenge. Whether you bug-in or try to keep going, fatigue, weather and general biological necessity are going to force you to take shelter along the way. I'd make sure you've got good solid basics for that. Tent, groundsheet, tarp, rope, pegs/stakes, etc. A repair kit, shovel and mallet would also be in my kit. You could improvise but I prefer that to be Plan B and Plan A to be more dependable. The longer the stay and the tougher the environment, the beefier the gear.