I like it. Couple things I saw missing:

Super glue
Sand paper (for roughing stuff up)
STOUT thread, like fine braided fishline or #69 nylon
Precision screw drivers (I like the kind that fit into a pin vise)
Pin drills (cleaning ports, boring fine holes before using wire to hold stuff together)

I am assuming you are carrying a multitool already.

Other than that, it looks pretty good once you restock your zip ties. Were did you find the SlickClips? I've been looking for them for months.