I usually bring a small pro shop with me to keep at camp, portable press, allen wrenches, extra everything I can think of, fletching jig you name it one of us will have it. In the pack, moleskin, allen wrenches for accessories, loctite, broadhead wrench, and a small tube of fletching glue.
Extra string fully set up, that can be a pain in the arse. Otherwise everything you have on your string have an extra, and have measurements of your bow when it is dialed in, then be able to replicate that when and if a broadhead finds it way near your string.
target and field points and all the allen wrenches for your rig, portable press.
In addition to bringing The Roman Archer, above all else, bring STRING WAX. Strings get fuzzed up and the wax wears off after a day in the bush... I wax my string every day if I spend a whole day hunting.
In2blacktail also recommends those inflatable
decoys for companionship if the pack goats are ornery.