My thinking would go like this (ain't hindsight marvelous?):
Without a read on the villain, on the flop, I don't know if I'd bet so much as a c-bet. I know that there are folks who say to bet 2/3 pot, but lately I've been thinking that you don't need to bet that much on a dry flop.
With the bet called, and the turn being checked to me, I think I'd check back. I probably need more aggression, but in my small sample of hands at micro limits, I've found that most players that don't fold to the c-bet actually have something. I haven't had much profit with bluffing
the turn when it's such a dry board.
FWIW, I'd play the same way if I had AKs. Once I miss the flop, I slow down.
Bottom line here, doesn't look like a river bet will take V off his hand. Doesn't feel like he's chasing a draw (there isn't one) so it seems like he's got the goods.