200PLO value bet river set on three straight board?

[Vinetou]

PokerStars Pot-Limit Omaha High, $2 BB (5 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($197)
UTG ($146.25)
MP ($146.25)
Button ($506.15)
SB ($106.50)

Preflop: Hero is BB with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img].
UTG calls $2, MP calls $2, <font color="#CC3333">Button raises to $11</font>, SB calls $10, Hero calls $9, UTG calls $9, MP folds.

Flop: ($46) 2[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, UTG checks, Button checks.

Turn: ($46) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, UTG checks, Button checks.

River: ($46) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, UTG checks, Button checks.

Final Pot: $46

Maybe I am too much of a nut peddler, but is there any value in betting the river? 9T probably bets the turn, if someone got there with AT, so be it. But I am quite new to the table, so I don't know how much of calling stations are villains. Here are my questions:

1. Did I play right? Should I bet river?
2. If I decide to check and someone bets, do I fold?
3. What if I was last to act and they all check?

I have possible answers to these questions and I will tell them a little bit later.