If you're talking about the alaskan series from Cabela's, I wouldn't recomend it. I have one and the quality just is not up to par with the other brands mentioned. The straps and pads are un comfortable, and the supposed rifle scabard doesn't hardly work, if at all. After 5 days in the snow in Idaho I realized the pack was not going to cut it, this year I up graded to an Eberlestock and have enjoyed my pack hunts so much more.
Personally I couldn't afford the Kifaru or Mystery Ranch so I went with the Eberlestock J34. It's a little bit smaller than some packs but it works great for 2-3 excursions and if I need to go longer I can attach their spike camp duffle via zippers and nearly double the packs size.
I got my pack through payson outfitter's, they have some good deals (free shipping) and a few other promotions. Arrived within a few days. They also carry badlands.
Although they're expensive,
www.mysteryranch.com is another quality brand.