Uroctonus mordax is not one of the more common species in the trade. Actually, it's quite rare for the trade in the US, though it occasionally shows up (I saw this species listed for sale once, but the single scorp was already sold by the time I got around to calling and that was at least three years ago). Chances of finding one or more for sale are slim to none. If you do have success, or if you still want to venture into the better understanding of this species, I'll attempt to get someone who has kept them in the past, or currently keeps them, to give you some advise on them. Just let me know.