Stars 2/4 AK hand against a table full of LAGs

[edge]

I'm in BB with A/images/graemlins/spade.gifK/images/graemlins/club.gif at a Stars 2/4 6-max high-speed game where everyone is insane (is this standard?).
UTG folds, UTG+1 folds, CO calls (a maniac who was impossible to read and showed down tons of bluffs, but almost always had the goods if you decided to call him down), Button raises (raised with weakish hands before), SB calls (very superloose preflop, but new to the table), I 3-bet, all call.

Flop (12 SB) 8/images/graemlins/club.gif7/images/graemlins/club.gif4/images/graemlins/club.gif

SB checks, I bet, CO folds, Button raises, SB calls, I 3-bet, Button caps, SB calls.

Turn (12 BB) J/images/graemlins/heart.gif

SB bets, I call, Button calls.

River (15 BB) K/images/graemlins/diamond.gif

SB bets, I call.

Here's my reasoning. On the flop, I have the second-nut flush draw. I bet and 3-bet for value, but when Button caps, I put him on something like A/images/graemlins/club.gifQ. No idea for SB.

I think the turn and river are pretty simple, am I wrong?

[naphand]

Looks good. No problem with the Turn and River, I think raising the River is just asking for trouble.