Oh wow & excellent. NW New Mexico native kudos here. I wasn't expecting to see Navajo on the boards. I think the flavor is pretty spot on. Maybe allow Self Sufficient instead of Skill Focus but that's small potatoes. I might even suggest upping the Skill Points to 4+int/lvl. Losing 5/10 spellcasting is hard.

There's also the Trophy Hunter feat that might go well flavor-wise with this.