Indeed #itemslots 126 nets a whopping six handslots. Trouble is you can only have four "weapons". It's easily solved by putting twohanded weapons in the slots and giving the creature a custom "Six Fist Punch" attack, rather than "Fist, Fist, Fist, Fist, Fist and Fist". But since it's so easy to mess things up accidently with more than four hand slots it might be preferable with a less is more strategy.
