I left hundreds of dollars of kifaru in the closet in favor of an 80s vintage Dana Design Alpine. 6000ci capacity, single tubular bag construction, the bottom 1/3 easily cinches down to nothing for daypacking and humping meat, the dana "beavertail" good for strapping foam pads, boots or shoes, and layers when the inside volume is used up. Side pockets fit a rifle butt and compression straps keep it tight against the side of your pack, in a manner that allows easy rest-sitting on a rock or stump (the kifaru gunbearer requires doffing your rifle to sit on anything, which sucks when there's nothing handy to lean it on...). I use the gunbearer while hunting, but strap the rifle to the pack if packing a long ways to get the rifle out of my armpit (and the barrel out of my headlamp glare if hiking in the dark).
I bought that pack for $50 a few years back. This year I 3-tripped a raghorn elk plus hot tent camp out a few miles with it.
The packwheel options are pretty interesting. Easy rolling with a 29" wheel.
