(You need to Login or Register to view media files and links)Akula,
if a survival kit gets too big to bother carrying, you won't -- I'd go with a smaller mylar bag like the one above; I have an "emergency poncho" I picked up up somewhere that's a bit longer and wider than a deck of cards but only half as thick. Just google for "emergency poncho" and you'll find lots of options. crawling into the bag with the poncho worn over the top of that should offer waterproof and warmth. I'd back the firesteel and bic up with at least a book of matches, or a small box of strike anywhere waterproof matches (in ziplock bags, doubled). Butane doesn't work too well in really cold temps.
The fanny pack I use for hunting is an old convertable model, with a zippered top that opens up into a day pack - when zippered closed which is how I carry it 99% of the time, there is just enough room in that folded up top half for me to carry my "emergency kit" - that poncho, a knife sharpener (which I use everytime I get an elk), a bottle of iodine tablets (which I also use from time to time) , a mini first aid kit (few bandaids and aspirin mostly), a small hank of thin nylon cord - 100' I think - might be more, but can't remember, a small spare knife like a Gerber LST, a spare compass (there have been times when I was certain that my compass was wrong - had to be! - digging out that second companss to confirm direction can be really important in those instances - of course compass #1 was correct, but now I knew it for fact), a spare flashlight that's about the size of a 12 Ga shell - I have used that that spare light several times, when I've had the bulb on my Mini-mag burn out on the way in - I can replace the batteries in the dark, but no way could I replace the bulb without another light to see by; a small matchbox wrapped in a couple of layers of ziplocks (maybe 2 - don't remember) a spare pen - mostly to fill out the tag if my other pen doesn't work, and a topo map of my main hunitng area - that's my tinder if I need it. That's form memery, can't remember what else may be in there, but that's enough for me to survive. I can't fit a space blanket or bag in there, not much else. The volume availbale is maybe 12" x 5" by 1" thick and in ther is the folded up top of hte daypack as well, so its a tight fir.
I've kind of been playing devil's advocate on the altoids tin thread, so I'll keep wearing that hat. Whatcha gonna do with that snare wire ? How many people have you ever heard of who actually succsessfully snared something (I did see a Griz get snared once on a TV show) ? again, to be useful, you'd need soft wire that could be bend/broken into pieces, and enough wire to set maybe half a dozen or dozen snares in different locations if you actually hoped to snare a rabbit. You'd be better off with the nylon cord - you could sit by a squirrel midden or fav log of the squirrel and maybe with a long leash, be able to snare a red squirrel - odds for that are a whole lot better than thinking you'dd get a rabbit. I've been thinking that a useful item, for a snare, would be a long 30# test leader - wire or mono - would be simple to clip back on itself to make a loop, and that could be attached to your length of nylon line.
I favor a lot of smaller diameter line over a bit of para cord - I don't carry a space blanket, so my plan is to use that line for shelter building - and I want enough to do that - to lash brush or small trees together, or to lash a cross pole to two trees for a leanto.
I googled paracord pedometer - an abacus on string ? I'd say forget that and use the space for another pack of matches, or more line.