I'd lose the bear spray, the tripod and scope. Possibly the gaiters depending on the forcast. Lose some of the water. That's 2.2 pounds per liter. not hard to free up a few pounds there. You will have to find water anyway. I personally like to sleep in my hammock. 1.1 lbs. With two blankets, 1.1 lbs each. And two tarps, one underneath and one over. 10'x10'. Just under a pound each. That's right at 5 lbs Total weight and much better on my back than sleeping on the ground. It's much easier to find two trees on the mountain than it is level ground. My pack is 44-48 lbs. For 5 days. Unless you have the absolute best and lightest made everything, that's about where you can expect to be according to all of my research.