PokerStars Pot-Limit Omaha, $3.00+$0.20 Tournament, 5/10 Blinds (2 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Hero (SB) (t1240)
Button (t1760)

Hero's M: 82.67

Preflop: Hero is SB with K, K, 8, 9
Button bets t30, Hero raises to t90, Button calls t60

Flop: (t180) 3, 7, 6 (2 players)
Hero checks, Button bets t180, Hero raises to t720, Button raises to t1670 (All-In), Hero calls t430 (All-In)

Turn: (t2480) 5 (2 players, 2 all-in)

River: (t2480) 8 (2 players, 2 all-in)

Total pot: t2480

Checkraising is only good if you know he's betting, and given that there are some bad turn cards I prefer leading the flop.

I should be trying to get it all in right?

Oh ya. Happily.

Really? WIth only an 8 card OESD, and not even a back door FD?

With it being a 3bet pot the stacks aren't deep.

Check/folding is horrible because this is a decent flop for your hand.

Check/calling is very weak because you give him a free card, or if he bets the pot will be $540 on the turn with only $970 behind and you have no idea what cards are safe (other than the offsuit fives, tens and kings). You're just setting yourself to be bullied off by a ton of worse hands.

Check/raising again lets him take a free card with a ton of hands, and given the pot size that's dangerous and makes the turn play very difficult. If you know he's betting I like the c/r though.

Bet/folding is bad because there are so many worse hands and draws he can raise this flop with. Even against a hand like a naked top two you have good equity.

Bet/call is pointless because there would only be $430 behind - you may as well just shove.

Bet/shove is by far the most obvious play. Leading the flop prevents him from taking a free card, and you have more than enough equity to get it in against his raising range.