10NL TPGK OOP Value Bet question

Villain is running 49/0/1 over like 30 hands. Flop check is really really questionable, I had originally planned to check-raise, but after checking came to the conclusion that it was a pretty horrible board to c/r in a multi-way limped pot and chickened out. Heads up on the turn, my thought process was that I really needed to find out where I was at, and the most efficient way of doing that was to lead out. If he raises I can fold, If he calls I'm really not sure if I'm supposed to bet almost any river or not. I realize that this is 10NL and I can't go above Level 2 thinking (what does my opponent likely have). He's obviously never ever folding anything that beats me. I have no idea how likely he is to call the river when beat. All this considered, v-bet this river and fold to a raise, c/f, or c/c let's say average of 3/4 pot?

PokerStars No-Limit Hold'em, $0.10 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

saw flop | saw showdown

Hero (SB) ($14.45)
BB ($10)
UTG ($9.60)
MP ($12.75)
CO ($5.10)
Button ($9.05)

Preflop: Hero is SB with Ahttp://www.flopturnriver.com/phpBB2/...iles/spade.gif Jhttp://www.flopturnriver.com/phpBB2/...es/diamond.gif
UTG calls $0.10, 1 fold, CO calls $0.10, Button calls $0.10, Hero calls $0.05, BB checks

Flop: ($0.50) 10http://www.flopturnriver.com/phpBB2/...iles/heart.gif Qhttp://www.flopturnriver.com/phpBB2/...es/diamond.gif Ahttp://www.flopturnriver.com/phpBB2/...miles/club.gif (5 players)
Hero checks, BB checks, UTG bets $0.30, 2 folds, Hero calls $0.30, 1 fold

Turn: ($1.10) 7http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
Hero bets $1, UTG calls $1

River: ($3.10) 3http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
Hero bets $1.80, UTG calls $1.80

Total pot: $6.70 | Rake: $0.30

My thinking for value betting here is that he's almost always going to check behind hands that are beat that he'd potentially call with. I'm thinking that a guy with these stats in a limped pot getting to this river is beat a lot more than he's ahead, but as I mentioned we have absolutely no clue how often he calls river when beat.