I'm doing that kind of hunting this year also. I'm not sure of the configuration yet. Last year my buddy mounted his strung bow on the handle bars, it worked, but it looked like a pain, and not safe. I put on a heavy duty front, and rear rack, and am thinking I will leave the bow in pieces, and hang it off the front rack in a safari case for the trip in. Possibly use ATV forks on the front rack, if I'm actually needing a strung bow handy. I think it really depends on how readily accessible you need a strung bow. I really don't see how any mounting option of a strung bow would be safe on a tight trail situation.
Are you using a trailer?
Doug