[mmcd]

I'd be a little worried about UTG+2 calling 2 cold on that flop, but seeing as he did that and then folded to a single bet from a maniac on a complete blank turn, I take it he is no one worth worrying about. Once he drops I probably get a check-raise in on the turn, but if I don't I certainly bet the river. (Assuming SuperLAG here really is a SuperLAG he could have a 4, a 5, pocket 22-88, Ax, Kx, or absolutely nothing)

Also, 3-bet the maniac on the flop (and hopefully he'll cap it) here since UTG+2 seems like a pretty weak player. This is a big pot and your hand is vulnerable. I'd be willing to bet that UTG+2 might call 2 cold but then fold when it gets back to him if you 3 bet and maniac caps.