I'd recommend a guide, not just for the hunting, but if you are DIY and get one, you still have to deal with moving 500-800 lbs of dead weight.
I've hunted with Shattuck Creek Outfitters in Idaho 3 times, they are lower elevation (3500 ft I believe at the lodge) and use ATV/trucks to get around. They use lots of tree stands if you want, some are walks in, some they can get an ATV right to, some are long/steep walks. They will cater to you.
On my second trip (the only one without my wife), I was paired with an older guy, which worked out fine because he tree stand hunted and me and the guide took off calling. One day he went calling/hiking and pretty much had a meltdown with a bull in his face, turns out he had heart issues he never told them about, they QUICKLY adjusted his hunting to be driven to tree stands and picked up. He came back the next year and shot a spike from one of the stands.
It can be done, but you need to be honest, both with yourself and the outfitter.