Do we have any information about how villain responds to 3 bets? Depending on the villain I like using this type of hand as a three bet bluff.

I really don't like the check fold on the flop, we have a pair which can absolutely be the best hand and we are being offered ~3/1 on a call. If you are check folding these types of boards then the three bet preflop is a fairly substantial leak IMO as you are going to be very easy to play against in these spots. You won't be hitting anywhere near enough flops to make this play profitable.

what about cbeting flop? dont we getting some floats and we just c/f turn ?

K6s is the worst suited Kx I call BB versus CO, but I 3 bet the others so the hand type is fine for a bluff.

Flop looks like a c bet though with a pair and some outs on the turn. Not a great spot, but we will have some fold equity to go with the chance to make two pair.