Best advice I can give is to spend some time on a stair climber at the gym, because these hills are STEEP. Some form of climbing staff will be a big help too. Tina used Crispi boots and my Kenetrek boots were a big help in getting traction both going up and coming down. Thick layers of leaves were a problem, so a wide tip on the end of your climbing stick or pole might be better than a sharp point. Matter of fact, a combo tip that's wide so as to not sink deep into the fallen leaves, yet still has a sharp tip to work on other surfaces might be ideal. Tina says snow tips with baskets and steel tip would work.
The Chamois tend to be most active early and late in the day. They are easy to spot on the rocky areas feeding and bedding. My small experience leads me to believe they like to bed in sunny spots out of the wind where you can see them chewing and often sleeping.
Spotting from one place seemed to be the norm, but when you get to the top, be ready to lay down your pack and prepare for a shot if the guides see a good trophy within range. You are going to be a little winded at the top, but be quiet and ready to take a close range shot. I got lined up on several at less than 100 yards just as we reached the top, but they fed behind brush and didn't offer a clear shot, or weren't what we were looking for.
The leaves are still on the trees, but are starting to turn and temps have dropped in the last few days by 20 degrees. You will have better visibility so good binoculars are a plus.We both had Leica Geovid rangefinder binoculars.
We hiked up the hillsides in light clothing, but had small packs with extra layers and jackets because at the top it was windy and cold. Sweating and then freezing with each ascent and descent were the norm, so light wicking clothes were better than heavy wool or cotton. I wore 100% synthetic socks that are Cool Max wicking, but something warmer that still wicks moisture might be best for later in the season.
Marius wore Kuiu brand clothing almost exclusively, and is very happy with it when mountain hunting. I wore several brands of tech pants and they worked great.Tina had Kuiu pants. Of course the Africa Hunting hat made the photo op, but a warm beanie cap and Gore-Tex jacket will be needed on the top of the mountain.
If you will be using the rental rifle , it's an R8 in 6.5 PRC, and both Tina and I made great shots with it. Shots over 300 yards are possible, and the R8 has a fantastic trigger.
Cell service is spotty up in the mountains, but WIFI is available at every small lodge, so you can easily keep in contact. Power converters are E/F type, 230 volt. Tina bought ours on Amazon.
https://www.amazon.com/Adapter-Germany-Outlets-,Schuko-Adaptor/dp/B0CNQPX92G
If you plan to do any tourist activities, and rent a car, you will need an international drivers license.
Oh, one more thing. The shooting sticks were unfamiliar to Tina and I, and it took her a while her to get used to the GunStix type. I was rock solid after a few minutes of learning how the windage and elevation worked.

Both Tina and I shot our Chamois from the prone with the rifle forearm resting on our packs. The Stag and Roebuck were off the GunStix.