PL 5/10 King high flush

[RollinHand]

So I'm playing some 5/10, max buyin is 500.
It's 4 handed.
Both my opponents in this hand has around 700.
I have 500.

I'm in the SB with 2s 8d Qd Ks
CO limps (he's very loose agressive after the flop and I would consider him kinda bad)
BTN limps in as well(which he had done alot, probably a passive player but no read reads). Hero completes SB (not the best hand but I do think it has some value)
BB checks.(I've played with him before, I would say that he knows what he is doing)

Flop: [9s 8s Td] Pot:$40
Hero checks, BB checks, CO bet $30, BTN calls, Hero calls. BB folds
Turn: [9s 8s Td 5s] Pot: $180
Hero bets 92, BB folds. CO and BTN calls.

River: [9s 8s Td 5s 3c] Pot: $436
Hero checks, CO bets $436 BTN calls $436.
Hero has $368 left and ???

I'm pretty sure CO has the nut low here (maybe even A4xx) but I'm not sure about BTN.
This was a pretty tricky spot for me and I wasn't quite sure what to do.

I think I screwed up on the flop, kinda dangerous to call here but I ended up making it. Makes the rest of the hand easier if I just fold or lead at the pot.

On the turn I kinda bet for value and to find out where I stood. Since CO is so agressive he might pot it with a naked A2xx so I didnt really like checking it here. He would probably just call with a set if he had one.

On the river the low hit and I didn't feel like betting out again, didn't see that much value in doing so.

I hate playing Hi hands in this game, esp OOP. [img]/images/graemlins/confused.gif[/img]
Suggestions, thoughts?
Thx!