I haven't carried a spare LoPro yet, but I carry spare U-bolts. Folks have pretty much covered the stuff in my repair kit except that I carry spare nuts & bolts for other stuff around camp, not just my boat and frame. Like smaller ones to repair camp chairs. Seems like we get a busted chair or one that has screws fall out at least once every season. Also smaller size Allen wrenches for these small repairs.
Avatard - You have a devious mind.....I thought we were bad painting the guys toenails whenever they fell asleep in their camp chairs. Beware!!!