There is a lot of great advice here, as always.
My only two cents is to cary enough to buy what you can't fly.
Fro me it would be the ability to buy a knife that woudl be leagal in the enviorment that I was in, and to be able to buy the proper gear that I couln't fly.

Luckly clothing and sealed food can fly prity easy, and the ony thing you wold have to aquire is things like knife, tinder and some other flambilbes that you would use to start a fire. beyond that I think what is in most our our kits anlong with a set of phone numbers shold be albe to get you throught bad situations.

Remember the best tool you have is your brain, and that can get you through some tough situations.