Not real sure about your location. Altitude cannot be replicated, but work on increasing your wind. It seems everything is uphill in elk country, so long walks around the flat land are not the same as a short walk around a mountain. Absolutely the best thing I learned is to forget your notions of how fast you can get from place to place.
I would have a talk with your physician, I took something to prevent altitude sickness, it was very cheap $4 for twenty days worth I think. From what I remember it comes on sorta like pneumonia. The body will naturally dehydrate as a response to altitude. Drove out to Co. with four guys we were stopping constantly to hit the head, on the way back each of us were thirsty and rarely needed to stop. The point of all this is bring plenty to drink both at camp and on the trail.
Bring a good LED flashlight, they don't eat batteries. I always have cordage with, but a real rope available is a good thing. We had to pull a cow out of a wallow she died in. Matches and lighters in camp, no one smoked and we were nearly screwed by week end. A good First Aid kit, we dealt with a scratched cornea and very nearly could have ruined a hunt. The kit was provided by outfitter and did happen to have ointment for that, never crossed any of our minds in what we packed. Eyeglass repair kit / spare, luckily our problem occurred on trip out near Denver, easy fix for a pro.
I just included the main things that surprised me on my hunt. I've been at this about 30yrs, but always flat land and usually close to town or home every night. I'm assuming you are in Ontario and know all the laws and peculiarities of Canada vs. US laws.
#1 thing I can tell you is this: Take the scope cover off as you leave camp. The elk didn't get the notice we moved in that night and were still in the neighborhood!
#2 thing I can tell you is this: Filling and attaching the magazine does not load the chamber, even if legal shooting light has finally arrived.
