Hey brother I guess you've been doing some major mods to that pack list.

Only thing Ill add is about the Surefire headlamp. That uses 123's right? Those batteries are harder to find (and expensive.) My headlamp uses 2 AAA. Every gas station and dollar store has those cheap.

Good to see you come to the darkside: lightweight gear mate.
Looks like you are learning quicker than I did after 10 years in the Corps that I no longer need to pack for worst case scenario and EVERY contingency.