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I don't think so. I'd just use Dire Apes with the following changes:
Cold sub-type
+10 to Move Silently, Hide in snow as well as +10 to any skill checks in snow where terrain maybe a factor(Climb, Balance, , Wilderness Lore, etc.). Maybe take away their Rend ability and give them Improved Grab or something.
Edit: Oops. Simultaneous post. It looks like I wasn't too far off.