We would have a base camp at the vehicle and then have a satellite camp up on the mountain. We would live on the mountain for 3-6 days. Our base camp would have all the fancy camping stuff. Our satellite camp was minimal.
Along with the good boots, pack, etc, here's some other items.
High-end, light weight tent
Klymit sleeping pad Light weight sleeping bag
Multiple Water purifier (we had a ceramic manual pump that was great, and had a filter one that clogged, and needed a back up)
And also had iodine tablets as next back up
Multiple water packs to store water
Lots of good dehydrated food (we shopped for the best, and I made our own)
We had the Jet Boil and some other high end brand of water boiler. Both were good.
Get the high end game bags. I got some cheaper one's that were not good at all.
We had a spring fed creek near our camp (planned this ahead of time) and would pump water from here. We had multiple water bladders to store water in for camp water and filling up drinking jugs. We had our main packs for hiking in, and a secondary pack for hunting elk with basic essentials.
Also, get in shape. I lost some weight and got in real good shape for our second trip. The first trip I thought I was in shape, and the mountain kicked my tail. The next time I KNEW I was in shape to go.
We have what we call a "Honey Hole" for a DIY elk hunt. It's on public land and is known, but we went to the back areas where the 4 wheelers couldn't go, and where the elk were. We had multiple close calls, and I took a cow elk with my bow one year. I had several bulls within range, but no shots. Bow hunting elk is a thrill you can not explain or put into words. It is truly amazing.