I'm a Black Belt and Instructor in a combat martial arts style (as opposed to a sport art). Every month all of the black belts and instructors gather for a training camp. I do mean a camp. I have become the defacto medical provider and am looking for a jump kit. I need a backpack. It needs to be subdued preferably black for various training reasons. It needs to carry basic airway management supplies, an O2 tank, and standard trauma supplies (4x4, bulk dress, kerlex, etc.). Room for a couple of C-Collars would be nice. I've found the Blackhawk MED-7 seems to fit the bill but most every thing else I've found doesn't have a place for a O2 tank. Any suggestions. Don't need any thing as large as the STOMP II. Thanks