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Agreed with @REI-MichelleW -- the "big three" is the most logical place to make big losses in weight. Going from a synthetic three-season sleeping bag to a down topquilt can save a pound or two right off the bat. Your sleeping pad is another good place to shave weight, provided you retain enough insulation for colder overnights.
What sort of "bear-safe" food storage are you referring to? One potential way to save a significant amount of weight is by swapping out a bear canister for something like an Ur Sack.