Don't overthink the equipment. You've got plenty of good stuff. Sheep hunting is as hard as hunting gets, so make damn sure you are in shape. In the last 2 months besides hiking and walking I would be on a stairclimber with a loaded pack many days a week.
Your mental outlook is really important. Sheep live in the tall and steep sometimes with lots of fog, wind and clouds. Do not get discouraged by tough conditions. You are asking for those by chasing sheep around. If it was easy, women and kids would be going with you. Lots of people emphasize equipment, but do not get in good enough shape physically and mentally.
