Just like the consideration of expense with a Pelican vs 50 cal box being stolen, (or shot full of holes) what about everyday inexpensive items for contents instead of medical specific ones.
What do you plan to include?
Sanitary napkins, shoelace, alum, plastic bag & vasolene, duct tape? ( ie battle compress, tourniquet, quick clot, sucking chest wound.... and everything else)
Instructions for use?
How about telephone number for closest emergency services, gps quardinates and exact address of the rural(?) range for EMT/life-flight helo response?
I think a talking defibulator would be the best medical addition to our local range when the average age and fittness of the users is considered.