Wow. One suggestion is a map of gear and mega double-cross index sheets.*
So others can find everything in this kit. Have a water proof sheet packed on top with the index and visual map of what's in what pocket (pouch).
Possibly add a book light and headlamp so it can be used in the dark.
Teacher
( *list items both by common name AND under a listing of uses. eg
WOUND CLEANING
Irrigation syringe
et.
etc.
and alphabetically.)