Less and less every year, that's for sure. This year I used the x2 backpack and it's working out quite well for me in this capacity.
Anyway, off the top of my head this is what I took on my last 5 day solo backpack hunt:
A 2lb 25 degree down bag, 3/4 length pad, 9x11 construction tarp, 25' para cord, ~1.5lb food/ day, pocket rocket stove, 1 fuel cyln., 1qt ss pot, 2 ss water bottles, hydration bladder, water tablets, fire kit, 1st aid kit, hygiene kit, knife, steel, folder saw, headlamp, compass, topo, 2 extra socks, insulating base layers, wind/water shell, rifle, ammo, 2 game bags + 3 trash bags, multi tool, gun oil, lens cleaning kit, spotting scope, camera.
That's about all that goes in/on my pack going in. Before I strap my rifle on, the pack is right at 30lbs and completely stuffed! Trekking poles, binoculars, hat, boots, gloves, sunglasses, etc are on my person.
After I make camp and off load tarp-bag-food cache I'm left with a nominal day pack that I hunt with. The x2 backpack is plenty stout enough to take a 70lb load of meat/horns/cape out with. I do keep a freighter frame and extra provisions at the truck since multiple, bigger loads--or even a stay at the trailhead-- can be prudent.
Spend your pesos on quality boots, socks, and backpack first. Good trekking poles, good outer shell second. Take nutritious food, not just high calorie. Incidentally, my bag is just a no-name $100 down mummy that I unzip and use it's like a top quilt. Love it! Works well to near zero before I seriously second guess my own sanity anyways. My goto "tarp tent" is just a $4.99 Harbor Freight special. I kid not. It was bought as a backyard "experiment" but never got "upgraded". Backyards are great, low risk proving grounds... especially in bad weather.
However you go about it, go for it!