I agree with "aloha" on the canteen, cup, and stove (with a few trioxane bars or fuel tabs). You might look into trading the "bottled" water preification tabs for some Katadyn MP-1 Purification tabs. They have one of the best reputations on the market right now for purifying water the best and they come in a flat blister pack that makes for easy packing. I put mine in a heavy duty Ziplock Freezer bag (qt. size) just to ensure they will be ok when I need them.