100NL with 102bb stax.

1 fold, 19/14/3 standard TAG opens to $3.50 in MP. I have 500ish hands on him but I've never really noticed him before. Probably pretty unimaginative. CO folds and I cold call with K Q OTB. Blinds fold.

Thoughts on preflop? Traditionally I just 3bet/fold here, mostly folding because his stats err on the side of too tight to 3bet. However I've been trying to open myself up to the option of calling because I've been trying to experiment with taking flops away from people.

Flop: A 7 7 Pot: $8.50
He cbets for $6, I flat call.

Personally I think this float is bad because I think the Ace is the most likely card in the deck for him to hit but I've been seeing so many posts recently on 2+2 etc. where people are advocating c/r bluffing or generally getting tricky on A/K high flops that I decided to call. Thoughts?

Turn: 8 Pot: $20.50
He checks, I bet $14.35.

I believe that this is fine as it stands. However I am of the opinion that if I'm going to bet this turn in this spot then I need to follow up on the river a high percentage of the time because I can see him calling one street with an ace-good-kicker a lot but rather rarely will he call two streets. Thoughts?

He calls the turn bet.

River: 5 Pot: $49
He leads for $15.

Here basically this bet means to me that he has a pair of aces with a not-so-good kicker and he wants to deter me from making further aggressive action because his hand can't call a big bet. Is there another way to interpret this bet?

Based on my interpretation of the situation I decide to shove all in. He has $67 left to call and after my shove the pot is ~$140.