I am also old enough to be a fan of old school wrestling. I think a level in rogue just so he can get back stab would be good especially from a character development perspective. Cant fight much dirtier than hitting someone from behind when they are not looking. Any abilities that let him cause blindness would also be in character as i seem to remember Rick always doing this. Stick to the grapple theme with the monk it works from a story perspective which for me is just as important as efficency in game. I would love to see this guy in a fight with researches Snake druid shaman build, kind a Jakethe Snake v's Rick Flair old school match.