Free: Contests & Raffles.
GPS, compass, maps, and the skills to use all of them correctly. I'm not sure how far from camp you'll be hunting, but a survival kit with a metal match, mirror, tin cup, fire starters, rubber tubing, extra knife, rope, space blanket, wire for snare, compact survival book, all closed up in a foodsaver bag. Again, the knowledge of how to use all of them.
Socks, socks, and more socks. Spend the money to get the good ones. Wet feet suck ass