Check the MRS section in the Eastman's February edition next year. For a young guy who is trying to get his first antelope, pretty much any unit in Wyoming has great success (80%+). The two big things are public access, and if he can draw the tag. The MRS will help out a lot in sorting these two things out. Any of Eastmands "blue chip" or "green chip" units would be a great hunt for him. If you can afford it, applying in the "special" draw will increase his odds DRAMATICALLY of drawing a tag in most units. I think there is no better hunt for a boy than an antelope hunt, lots of action and opportunity. Good job dad and have an awesome time!