-Tweezers
-Snake Bite Kit
-Immodium
-Flint-type fire starter
-Small container of cotton balls soaked in vaseline
-Fishing kit
-Snare wire
-Breakdown rifle (and ammunition) if you're in an area where you're allowed to have it.
-SilTarp or other rip-stop nylon tarp to make a tent/roof
-mylar space blanket (or 2 or 3 - they're cheap)
-a decent saw. Sawvivor, or Veritas makes a great buck saw.

Have you loaded up and tried to carry the various stuff?

I've abandoned my ALICE pack - too heavy. For me, anyway. I have my stuff organized into:
- a gear belt with canteen, shovel and fixed blade knife
- a small personal kit (altoids tin)
- a "wear it" kit in a tactical vest
- a "go bag" in a smaller (16 1/2" tall) backpack (with a hydration bag) to which I can tie a blanket/sleeping bag roll
- in winter, a parka goes over the vest and the backpack goes over the parka. I adjust the straps when I start wearing a coat.

I grab the belt right away - takes only a second to strap on
I can get by with the PSK if I have to - minimal comfort.
I can get by well with the vest.
I can get by in relative luxury with the go bag.

I also carry water and rations in the trunk, and will grab and stuff whatever there's time and room for if I have to scoot.