Youhave obviously put a lot of thought into your kit. I, too, am carrying a loaded fanny pack more and more. Definitely holds more than an Altoids tin.

One thing I would suggest is to substitute LEDs for the minimags you are carying. You will be able to increase your effective illumination time while cutting back on the number of batteries you are carrying. I have been carrying a Petzl Tikka for the last eighteen months and it has seen regular, although not heavy use. It is still on the original set of batteries. I used it for about forty-five minutes recently during a power outage and it provided perfectly adequate light. There is at least one highly regarded LED conversion kit for the AA minimag, although it costs about $26.

Then you would have room for an elastic bandage, a key item for my FAKs. Not all will agree with that choice, but if walking might be on the agenda, I want to be able to hold ankles and knees together.