There are several magazines and books on the subject, and stores that cater to backpacking.
Think light and leave extra weight behind. If you can carry too much you will be lucky to make it to your destination. Lite tent, or shelter, bag, medications, freeze dried food, water, purification, stove, fuel, clothes and gear (compass, GPS, maps, game bag (?), it all adds up. What's your limit, get into condition, take short hikes, work out the details before your big hunt.
Water can be an issue, good topo maps will show likely sources. It needs to be boiled, purified, or treated otherwise the risk is high you will get sick. Food is a matter of personal choice, you need the energy if you expect to trek into the backcountry, hunt and be able to hike out.
You need to know how to take care to any game you kill, and know how you will get it out.