200NL -- bluff this river?

[MotorBoatingSOB]

Villain is 27/15 in 60 hands.

Hero has $362.40
Villain has $219.70

Hero has [9c] [Tc]
Villain raises to $7
2 folds
Hero calls $7
3 folds
BB calls $5

flop is [Ah] [9h] [7s]

Villain bets $12
Hero raises to $32
BB folds
Villain calls

Turn is [3c]

Villain checks
Hero bets $50
Villain calls $50

River is [Kc]

Villain checks

Hero ?

The rest of the hand clearly isn't the "standard" play, but should I be bluffing the river here ever? I think I can fold out AJ/AT most of the time, AQ some of the time, and 68/8T and random pocket pairs like all of the time.

How bad/good is a bet here?