I hunt similar conditions and situations. However, in PA it is carry out the entire animal only (so most of us drag the animal, cart or sled). That said, I bought a Kifaru a few years ago anyway. It's expensive, perhaps overkill, but I don't regret it. We do quite a bit of land maintenance on the property and don't have access roads. It's park and hike. I use it for backpacking trips and hope to go out west as well.
As others mentioned, and in my opinion, 3000 cubes is a good all around size. Even if you are hunting in colder than normal temps, you can always lash that bulky coat/bibs to the outside for your hike to and from your spot. If you have compression straps, 3K isn't too big if you're not filling it up either.
Although I have not owned a Horn Hunter pack, they have captivated my interest. I *think* they are Made in USA, and would be a good lighter, less expensive option to the K packs. There is one store in my 50 mile radius that carries the brand, and they look well made. I also have a soft spot for Mystery Ranch, since I owned a few Dana Designs packs back in the day, but the lower priced versions are made overseas- not a huge deal for me, but may be a 'breaker for some.
REI packs aren't camo, but are offered in earth tones, if you don't have MR/HH money right now; There's always the classifieds, too. I started using a GI duffle bag as my approach pack, as it would fold up nice and small when I wore my bulky clothes. Anything can work. Some are definitely sexier than others. Beauty is in the eye of the beholder
If you're concerned about camo... Everything will see you walking regardless of your pattern, an old camo jacket, or blanket draped over your resting pack can help it disappear. That said, I've had animals walk right up to my non-camo packs on the ground while I was in stand and not spook because it wasn't camo, but because it didn't belong. But camo is cool.