I have used the Cabelas Outfitter frame and pack the past 2 years in Colorado hauling out elk. I think it is really a nice frame and not a bad price either. No problem carrying out a bull elk quarter with a decent frame. The pack is detachable has a water bladder and can carry a weeks worth of gear. Really balances the load over your hips.
Last trip out with just the antlers and some gear.....tired but happy.