Excellent recommendations by KC and FSJeeper.
Would get close to the target altitude while training. Some people, although in great physical condition can only travel to lower altitudes without suffering AMS. Find out what YOUR limits are.
Would also recommend switching the bandanna to a shemagh for wind, dust and sun protection. Tactical Gear.com for as good or better than the sandbox country offerings.
Would encourage taking good goggles. Military style are good, but the Smith or equivalent provide better ventilation and field-of-view.
Would take a small roll of surgical tape for foot and digit repairs. Wrap a few turns of Gorilla tape around your water bottle for gear repairs.
Would DWR all outerwear gear and tent materials.
Educate yourself on the local flora and fauna encountered in the region contemplated for your operations.
Are the local inhabitants and authorities of the area likely to be helpful or potentially an obstacle?
Really study the weather and forecasted conditions.
