Most of all, make sure you are in good physical condition. The brush and steepness in the Talkeetnas make a 2 week hunt kind of long.

I would suspect your guide will focus on Dall Sheep and the bear would be more of a target of opportunity until the sheep is taken.

While you may have an opportunity to hunt the other animals, I would rate encountering them while concentrating on sheep and/or bear is probably going to be unlikely, except for wolf. The Talkeetnas get hunted pretty hard, too.

The better shape you are in, the more you will enjoy the hunt and more you will make of it.