QKs ~ FIshy bluff?

Preflop and flop are fine imo. However I don´t like the turn play. I don´t know what range u 3b SB vs BTN pre, but I would say we definitely have less 8x than BTN. I would just x/c there. If you want to bet, 1/2 doesn´t seem right to me. I would say you want to bet larger (75%) or put in some tiny bet (25%), but as I wouldn´t bet myself I don´t really know which sizing to choose. The problem with betting is, when you actually get raised, you have to fold bunch of equity, which not exactly what we want. OTR I wouldn´t assume he doesn´t have boats in his range. Imo TT, 33, 88, T8 are still pretty likely. Otherwise I´m not sure if KQ is a shove OTR.

I think that turn cbetting is not that bad because he could fold some better hands like AK-AJ and maybe hands like 99, 77-44. When he called flop and turn, I would say his river range is something like AcXc, ATo, ATs-JTs, J9s. I also think he doesn't have many nutted hands in his range. Sets are probably raising OTF and trips are most likelly raising OTT. He has alot of top pair hands and some missed draws, but still all of his range beats our K-high. When we bluff shove, we need him to fold 62% to make a profit and if he folds all his busted draws and most top pairs, we have this. If we bet like 1/2, he would probably fold all busted draws and only some top pairs (if any), so even though our required fold equity is smaller (33%), there is a chance we won't have it. So I like the shove.

You should be calling mostly with 98s 87s 86s A8s 33 TT 99 on the turn here
and mix sets between call and raise on the flop, T8 is the only hand that should raise the flop always

if someone plays so bad that he never has tripps it's an easy shove with anything

I dont like the sizing on turn if you decide to bet. i make higher because your sizing tells him you re on draw or you have strong range like trips and full houses. On paired board i would choose to cbet turn and overall with this hand and board i go for bet/ bet/ship but no overbet thanks to good sizings on flop and turn

I would consider about checking OTF. The question is what would you do if villain make a big raise? Not sure if we will have odds to profitable call.
And you can for example check AA here (with Ac) for balance.
So I would check the flop, bet T and R (with bigger sizing).

Would x/r this hand on the flop a good %.

This turn is a check for me, Villain has alot more 8x in his range than we do. As some have already noted, what would you do if you get raised here? Or what would you do here when you bet AA and get raised?

The river shove seems very spewy to me, Villain could easily have slowplayed a set OTF, turned trips or rivered a straight. And we're blocking cards we actually want him to have that he could fold.