2/4 AA oop line check

[Choparno]

Villain is 40/23/2.7 and kind of a 'thinking donk'. Capable of hand reading and bluffing vs weakness. He will slowplay sets and call just about anything on draws.

On the river I'm getting nearly 2.5/1 to make the call but it's hard to see what I'm beating. Should I structure my betting differently so that I don't put myself in this position on the river? As played, is this a standard c/f?

2/4 NL, 6 players

Stacks:
UTG $635.70
MP $430.10
CO $271.40
BTN $599.70
SB $402
Hero (BB) $405

Preflop: Hero is dealt A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img]
UTG calls $4, 4 folds, Hero raises $24, UTG calls $24.

Flop ($50): 5[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/spade.gif[/img] K [img]/images/graemlins/diamond.gif[/img]
Hero bets $40, UTG calls $40.

Turn ($130): 2[img]/images/graemlins/club.gif[/img]
Hero bets $105, UTG calls $105

River ($340): T[img]/images/graemlins/diamond.gif[/img]
Hero checks, UTG bets all-in $236 effective