I didn't think he had much Kx in this spot as i assume most players will cbet into two players on that flop. I think its more believable for him to check a Kx on this board vs 1 villain.

Obviously a good turn card for me giving me a ton of outs, looking back i feel like a x/r on the turn here will be the best play for me considering I can most likely get him to fold some Tx and like AQ AJ type hands, and when i do get called I have a lot of outs to make the best hand on the river.

I think this river lead as a bluff was bad. The only way this is good is if villain has like Tx but I think he has AQ in his range here for sure and some Kx that could have checked flop that obviously aren't folding to this river lead, also if he had AJ he probably still calls for 1 bet here imo.

..

Raising the turn and leading the river is more believable.

Although when he checks flop he's missed, because if you hit you will bet into 3 people.

As played you have either hit your straight or bluffing. Villain depending.

You can rep a wider value range if you bet turn yourself. I'd bet big.

This. And barrel River a lot.