The limper in this hand is a huge fish, limping every hand and spazzing postflop. BB is a solid reg. The effective stack is ~1k.
Hero has Q
T
in MP
Preflop ($7):
UTG+2 limps, Hero raises to $25, BB calls, UTG+2 folds
Flop ($62): K
J
4
BB checks, Hero bets $40, BB calls
Turn ($142): 5
BB checks, Hero bets $125, BB calls
River ($392): 9
BB checks, Hero bets $260, BB goes all-in for $870
I think my preflop iso and flop cbet are standard. OTT my plan was as follows: bet a sizing that allows me to fold to a check-raise. If BB calls and checks river (and I miss my draw), I was going to bet non-spade and non-heart rivers with a small sizing, to fold out his missed A-high and K-high draws, bluff with a bigger sizing on a heart, and give up on a spade.
What do you think about my sizing on this particular river, and most importantly, what is the play after the check-jam?