The responses are pretty close from other members on this hunt. You shouldn't be completely discouraged concerning this hunt, but you should have realistic expectations as well. The strips in unit 26 do get jammed up with camps, and firewood is a little tricky with the no motors (chainsaw) rule. The outfitters really rule the area, and control the best hunting (Mile-High on the north side of Big Creek, and Zettels crew on the south). Water is at a premium in the high country; not many springs in this surprisingly dry unit, and the good water sources have been used by the outfitters for their camps. Finding deer down by Big Creek isn't tough, but finding a mature buck is.
The unit may be fair sized- but realize that for November, you are only going to be able to get 6-10 miles away from an airstrip at the ABSOLUTE furthest, and there are only a handful of usable trails to access decent muley habitat. Most hunters in 26 use Cabin Cr. or Soldier Bar as their airstrips, and for good reason; most deer will start to crowd the bottom end of Big Creek during the rut. When you look at hunter numbers for the unit (usually 70-100 guys per year) it needs noting that all those guys are crammed together within roughly 6 square miles of each other, so you could see how any deer with half a brain might seek to avoid the commotion. Most of the hunters are Washington guys, and pretty friendly; as most non-res guys are.
As far as trophy potential goes, a mature 4 point in the 130-140 inch range is pretty much the norm. Anything over 150 is a sure shooter in this unit and a 170+ buck is so rare that if this is your standard, don't even charter a flight. Trying to get away from a strip (at least 2 miles) will usually mean a day in which you will see 5-10 bucks, but most guys end up shooting 2-1/2 and 3-1/2 year old deer. This is a beautiful unit with a decent amount of deer, and if you get back there, best of luck. There are plenty of other units in Idaho that will yield much greater game densities, better trophy potential and less hunter conflict.