Villain has been a huge donkey so far, super loose

Should I just push this river? Check/call? I have no idea where I am in the hand honestly

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 (t1265)
MP1 (t815)
MP2 (t2765)
CO (t2850)
Button (t4260)
SB (t610)
Hero (t1480)
UTG (t5745)

Preflop: Hero is BB with 9, T.
4 folds, CO calls t100, Button calls t100, SB completes, Hero checks.

Flop: (t400) J, K, 8 (4 players)
SB checks, Hero checks, CO checks, Button checks.

Turn: (t400) 7 (4 players)
SB checks, Hero bets t300, CO calls t300, Button folds, SB folds.

River: (t1000) A (2 players)
Hero bets t500

given read, bet is good
given pot and blinds and your hand, call any raise

Yeah, good value bets on turn and river. Call any raise. A super loose donkey will probably raise here with 2 pair.