I been to NF hunting moose and I used my badlands 2200, it was perfect. As you know the weather can change very rapidly and its important to have some space for extra clothing, good rain gear and food for the day. We had both rain and snow and we (the guide and myself) walked/glassed/stalked all day but I was never dissapointed at my backpack, you cant go wrong with badlands.
But you probably dont need to buy a new backpack for this hunt, I guess you do fine with an ordinary standard backpack as long you have the space for your gear, dont forget the comfort.
Good luck to you.
/2s