The first people I'd be speaking to would be Ryan McGoldrick and Keith Mason. Neither of them probably fit into Franny's "culture" that he's trying to achieve, but there are already lads in the squad that enjoy a night out as much as the next man, so I'm sure they wouldn't be on their own.
Both are experienced Super League players. Mason gives us a prop, where we're very light. He might not tear up any trees, but he's a meter eater who can make 7-8m and get a quick play the ball, and adds a bit of aggression.
McGoldrick gives us an option at fullback, centre, halfback. Puts a bit of pressure on other lads to perform rather than knowing that they'll walk into the team.
Another to look at would be Hephlame Luaki, although whatever he did to warrant his treatment at Wigan must have been pretty bad, so I'd tread carefully on that one.