K-high calldown blind battle

[JrJordan]

Villain has 30/20 stats, but I don't think he's that solid of a player, probably the type to think of a line on the flop and play it regardless of what hits. Against a solid TAG I'd probably lay down on the river since he'd know by this point that an A-high is calling down and would give up the bluff. I rarely make the K-high calldown, but the pieces seemed to fit together for this one. We like?

Party Poker 10/20 Hold'em (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is SB with K[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises</font>, BB calls.

Flop: (4 SB) 4[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">BB raises</font>, Hero calls.

Turn: (4 BB) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">BB bets</font>, Hero calls.

River: (6 BB) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">BB bets</font>, Hero calls.

Final Pot: 8 BB

Bonus question: What other rivers would you consider calling down here?