10£/20£ go for river c/r?

[Chaoslord]

sorry no converter.

6-handed on crypto. i have a very aggressive image, villian is loose/passive (30/6 or something) not much history with him. he has 1877 i cover.

UTG+1 (villian) limps everyone folds i check in the bb with 8d2d
flop: Jd2c4d giving me a pair and a fd, i lead out 40 he minraises to 80, i call.
turn: Ks i check he bets 120 i call

so far everything is pretty std i think.
now river: 2h i bet out 420 (about potsize) and he instacalls with KJ.

i was wondering if it would have been better to go for a river check-raise (all-in obv) but im fairly sure hes not betting a jack but will call with one. also he could have a set in which case i dont loose as much (i planned on folding to a push since hes not creative enough to make this kind of huge bluff with a busted draw or something).

thoughts?