Value town on river, how much to go?

villain is 50/15.6/1.0 over 35 hands, unknown. i'm wondering how much i should value bet on the river to get call from worse hands given his stats.

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($100.80)
Hero ($119.50)
MP2 ($107.75)
MP3 ($18.50)
CO ($25.30)
Button ($81.15)
SB ($349.50)
BB ($168.10)
UTG ($90.15)

Preflop: Hero is MP1 with 8http://www.flopturnriver.com/phpBB2/...miles/club.gif, 8http://www.flopturnriver.com/phpBB2/...es/diamond.gif.
2 folds, Hero raises to $4, MP2 calls $4, 2 folds, Button calls $4, SB calls $3.50, 1 fold.

Flop: ($17) 4http://www.flopturnriver.com/phpBB2/...iles/heart.gif, 6http://www.flopturnriver.com/phpBB2/...iles/heart.gif, 2http://www.flopturnriver.com/phpBB2/...es/diamond.gif (4 players)
SB checks, Hero bets $12, MP2 folds, Button folds, SB calls $12.

Turn: ($41) 8http://www.flopturnriver.com/phpBB2/...iles/spade.gif (2 players)
SB checks, Hero bets $28, SB calls $28.

River: ($97) Thttp://www.flopturnriver.com/phpBB2/...es/diamond.gif (2 players)
SB checks, [color=#CC3333]Hero bets ? how much?

what does he think of you?

shove might look like a bluff to him. otherwise, 1/2 pot-ish.

we've only got like 63 left... so we kinda have to shove here.

The bottom of his range is busted draws that wont call anything anyway. He might double you up with a pair if he can put you on a busted flush draw though.

i bet $45 and he folded :x way tooo much???

busted draw, we weren't getting anything from him anyway.

how could this not be a shove? 45 is uniformly worse than all in

this is a good place to shove