Villain and I have a lot of history HU, most of it involves me being up about 20 buyins on him over 5kish hands or so. His HU stats are about 35/25, and he is a monster calling station post flop. He gets into these calling moods where he just tilts and starts calling multiple streets with Ace high, mid pair etc when there is no chance i'm bluffing. The dynamics of the match are incredibly important here. He was in one of his huge calling station moods but then sucked out on me, this hand happened pretty soon after that so he probably has calmed down a bit, but ranges will still be very wide here.

a large range of sixes is fairly possible here, along with Q8+, 77+, AA and assorted straight draws, and turn flush draws off floats. Its very hard to narrow his range too much here so thats why i struggled with this river. He isn't likely to bluff to a check, but he will bet some queens (and better hands ofc) on the river should i check. What it do FTR?

$10/$20 No Limit Holdem
2 players
Converted at weaktight.com

Stacks:
BTN ($4448.00)
Hero ($5472.00)

Pre-flop: ($30, 2 players) Hero is BB
BTN raises to $60, Hero raises to $200, BTN calls $150

Flop: ($440, 2 players)
Hero bets $315, BTN calls $315

Turn: ($1070, 2 players)
Hero bets $755, BTN calls $755

River: ($2580, 2 players)
Hero ($4202)?