MT, I went with the JB because it reduced bulk. Go with the larger fuel canister. It won't nest, but you'll probably only need one. One of the smaller nesting ones would probably do one person for one week if just boiling water for FD food, coffee, oatmeal. Add a fish fry though and probably not enough. So just bring 1 large fuel canister. Add a nesting small one for insurance if you want.

Get a small kitchen scale and start weighing everything to see were it's adding up. You might find your trouble spot is your tackle. Next trip log every lure that you get wet and see how many don't ever come out. Weight the extra stuff. ~5#???