Just at the first glance, what I would do with that list:
1. I'd replace with exact same shape (or close) stainless steel wide mouth bottle. More versatile (e.g. boiling) and sturdy.
2. Ok +wrapped in its stock collapsible bottle (almost same space as without it).
3. Skip "Turbo" and "Piezo", higher gas consumption, prone to leaking, bad at high altitude, not a flashlight replacement, piezo - useless when empty.
4. Replace electrical tape with gorilla tape (don't see any special benefit of ET over it). Tongue depressor? Replace with the piece of hack saw blade wrapped in a layer of cardboard (like in a sheath).
5. Replace nails with long screw anchors (you can hammer them in or over if necessary). You have Wave to work with them naturally.
6. Which Micron is that? For a bottle, I'd opt for a Petzl like headlamp. Easily removable battery - mandatory for EMDI (see below).
7. Addiction? Maybe some caffeine pills? Or just comforting?
8. Yeah! That's on my belt right now.
9. Two, so yo could hide inside, double it for insulation, or sacrifice one for cuts.
10. Maybe. Maybe the steel bottle is enough?
11. +Individual needs. Also, I had an idea to keep tabs in the nitrile gloves' fingers instead of zip locks, as later are useless. Fire tabs? Magnesium block with flint - much more effective, versatile, and compact (but prob. heavier).
12. Personal choice of supperfood. Foil minimum - a piece large enough to wrap entire head down to the neck (no joking, like for a foil hat - enough space for improvisations).
13. Ok. Add neck size lanyard?
14. +Scalpel blade for fine/sterile work.
15. +4' of SS wire #16-12, best if in a plastic tubing insulation (just a hunk, hard to wrap). From lock pics to electromagnetic devices improvisation (EMDI)).
16. +Coin type neodymium magnet, preferably with the center hole (small parts picker, compass improvisation, EMDI).
17. +Pencil (better - large constructor's type, for regular use, wood, and EMDI).
18. +Fresnel lens.
19. +Sewing needles.
20. +Kevlar sewing thread.
21. +For a 4-eyed. Spare glasses or just a lens from an old prescribed pair.
22. Alaska? May be +some insect wipes.

What gun do you carry? I've got Rugger .357 4" (not EDC, unfortunately).