hi. rbou
i use a camptrail condor 95, it is a big volume frame/ freighter combo pack. because i back pack into the mountains i have to bring tent, sleeping bag, thermo rest, food, stove,light etc. you probably don't need a pack this big because your guide will probably have a cabin in the area you are hunting in, also they most likely have horses for the trails. however you probably will have future hunts, where you will be backpacking on your own. therefore a big pack would be a neccessity