2-5 NL Foxwoods, interesting JJ hand with a laggish passive table

[arod15]

Foxwoods 2-5 NL effective stacks 500
Hero is in the BB delt J [img]/images/graemlins/diamond.gif[/img]j [img]/images/graemlins/spade.gif[/img]
Hero's image is rockish as my normal TAGISH self

6 limpers and SB completes
Hero makes it 55 to go.
UTG calls (a calling donk) MP +1 calls (ultra donk who never raises but always calls been playin 80% of hands)

Flop 9 [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/spade.gif[/img] (Pot 190)
Hero bets 125$ BB hesitantly Calls MP Calls rather quickly

My thoughts is to push on a non threatinging turn
Turn is a 5 [img]/images/graemlins/diamond.gif[/img] (Pot $565)
Hero checks, BB checks, MP checks

Now whats my plan on the river if a 4 diamond falls?
Can I call a bet? If so how big?
If an over card falls what my plan?
If a blank falls can I bet the river?

So many possibilities. And I cant put these donks on a hand range....
I assume at least one of them made there flush is that a bad assumption?
I also would like feedback on my PF and Flop play.
I feel as if I under bet the flop and I wasnt sure about checking the turn.
Thanks is advance....