2/10 If you aren't going to transfer, 5/10 if you are going to transfer on Hard, 6/10 if you plan on transferring from Normal Mode.
With use of bonus exp, I got him to cap every stat but Luck, which would be amazing if he could promote. It was great however when I got RD, meaning I got an extremely powerful unit that early. When considering him only in the context of PoR, he's only good for picking locks and finding stuff in the desert.