bottom 2 against flush on river, what to do?

[Dommer]

Villains stats were 18/2.3/2, he had gone to showdown 10% of the time and won 33% of the time, over 330 hands.

(hand convert is down so posting with pokerhand)
http://www.pokerhand.org/index.php?p...mp;hand=158783

Does anyone call here? Does anyone bet the river? I sort of thought AK might match his stats, but I couldn't decide. 56 or a flush or KJ were also possible.