top two vs unpredictable player

[IsaacAsimov]

Party Poker - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 3 Players - (LegoPoker HH Converter)

<u>Hero (SB): $94</u>
<font color="black"> BB: $86 </font>
<u>BTN: $84.25</u>

<font color="black"> Preflop: </font> Hero is dealt 8[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img] (3 Players)
BTN calls $1, Hero calls $0.50, BB checks

<font color="black"> Flop: </font> ($3) T[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img] (3 Players)
<font color="red"> Hero bets $3 </font>, BB folds, BTN calls $3

<font color="black"> Turn: </font> ($9) 5[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red"> Hero bets $9 </font>, BTN calls $9

<font color="black"> River: </font> ($27) 9[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red"> BTN bets $14 </font>

Villain is 45.70/0.00/1.57 over 302 hands with a river aggression of 7.5. Villains call was of moderate speed and villain is capable of bluffing.
He is somewhat unpredictable, because he never raises preflop, I suppose I can give him credit for calling a gutshot on the flop and turn.
Would you call in this spot given the pot odds and villains image?