>>456697>>456698as far as water purification goes a sawyer straw is a great cheap option, i think theyre 20 bucks or so, should be a priority but it depends on the location.
i generally try to bring as much water as i need, but you wont die if you use a sawyer for 2 weeks and its easier than boiling and filtering through a shirt or some other primitive method.
water purification is def priority OP, if you need basic gear advice lookup dave canterbury on youtube. the 5c/10c list is what youre looking for.