Father Son trip from NW Arkansas to Copper Canyon, Mexico on (edited from a pair of 250's) an XR250L and a DRZ400S. Besides good maintenance, new tires, and the proper tools, tires and tubes what else do we need? We plan to camp so there will be two pup tents, bags and minimal food as we plan to eat out as often as possible. I need advice because this will be my first long bike trip with my 17 year old son. I want him to have good memories not nightmares. Talk to me!