I am in search of a new pack and not sure how large I need. I need a pack that can carry 2-3 days of supplies ( Food, backpack stove, rain gear, water, binos, spotting scope, sleeping bag, bivy tent, and a few odds and ends) and would also be usefull in packing meat out of the back country. I dont want to over do it on pack size but I also want it it be adequate. Also Im trying to stay in the $300 and under range. Any suggestions?