about the wound, muzzleloader shot...that is the entry, the exit was on the opposite shoulder. He was quartering away. So the projectile traversed the entire animal.
I see them quite a bit but have only seen them from a long ways off since they usually stay up high. Its kinda sweet to see that caliber of Ibex up close.
The only area they are located in is the Florida Mountains, I have seen them off the Florida mountains making their way to the Tres Hermanas mountains but it is very rare. As far as outfitters I can't help you out there. If you draw a tag start working out the Floridas are brutal.