There's 5 limpers plus the blinds?
why not just try and take it down pre-flop and use your tight image that way?
in a multi-way un-raised pot then a flop of
has bound to have hit someone hard.
I suppose taking a stab at it post flop is ok but when someone calls then I think you just have to give up*
he's either got a monster or is a total calling station who will just not go away.
So basically I'd have raised pre-flop to try and take it
*Howver once you bet the turn and the river is a non flush and non straight card then I think you need to follow through on the river.