not sure if you made your pack purchase yet, but here are some observations on 2 Kifaru packs I own and use:
1. Spike Camp
Great day pack can handle a deer quarter or 2 for shorter distances. Internal frame makes it super comfortable for lighter loads (day hunt kind of load, extra clothes, etc). I've packed way more than I should in meat with this more than once, it probably looked hilarious with deer heads and quarters strapped to it every way possible....it worked but not what it was intended for. But again, very comfortable day pack. Don't think they're made anymore but I bet they pop up used from time to time.
2. Woodsman on 26" duplex frame
After using and abusing the Spike camp for a couple of years, I decided I needed a better meat hauler. I upgraded to this system and man what a difference. I'm 6'3 so I required a 26" frame. Last year in ID I packed whole, quartered mule deer on 2 occasions out in one trip by myself, in steep, ****** country. Pack handled it, no problem. Comfortable too considering how much weight was in it. I have also done smaller pack jobs (while hunting axis deer, considerable smaller) in the 40lb range and this kind of weight it can do all day long. So far I really like this pack, only complaint is its a frame pack and its tall, so its kind of awkward if you have to get prone to take a quick shot, the pack stays kind of make it difficult to get comfortable. But once you get in the habit of just quickly taking it off for shooting, that problem goes away.
Both packs were outfitted with the long pockets on the side of the pack, and small pockets on hip belt for organization. Both packs are super durable and built well. Not cheap but as usual you get what you pay for. Good luck!