Legends of Poker 1K River Decision

[NYWalker]

Legends of Poker 1K

Villain is tight. Early in one hand, villain utg limped AK, 2 more limpers. BB raised to 1500 (200/100/25), villain called and folded on a 9 high flop.

I had 7000, villain had 7700.

200/100/25. I utg raise 600 with KdTd. (Table is tight, in the last 3 orbits, I utg raised with AA twice and A9o once, got no caller) utg+1 calls. SB (villain calls, BB completes)

4 players. Flop K97 (two hearts),
villain checks, BB (A tight player) bets 900, I call. utg folds, villain calls from sb.

3 players. Turn 6 (offsuit). villain checks, BB checks. I bet 1500. Villain raises to 3000. BB folds. I call. (???)

River Qd, villain moves all-in has me covered. Hero??

(what's villains' range, limp pf, checks call flop, mini c/r turn and pushes the river.)