PLO100 AKK3ss postflop bluff. How far would you go as default line?

Even if villains have solid preflop ranges, I think many regs at my stakes already deviate significantly on many flops. For example I would say most people would not range bet, and once they are up against the pfa in a 3bp they apply mirror-thinking they act like if they are playing against themselves, so if they perceive you as reggish they don't assign you a flop cbet range of 100%. I think it's not paying enough attention to board textures or a general lack of theory knowledge. I could be wrong though if there are regulars at your stakes who are more skilled, but at my pokkerroom, even at PLO100 I rarely see regs being aggressive enough in 3bp's (which makes sense since you start winning applying a tight abc game before implementing more and more solver lines as you learn those). With my assumption players will be more capped cause they still like the shove with some of the vulnerable but strong hands like nutstraight or combostuff, whereas solver has a pure call strategy ip. We want to keep this in mind when evaluating turn decisions.

Ott peoples' range will be weakened and they should also defend the majority of :Ax::Tx: and some top-pair :Ax::Kx: and :Ax::Jx: combos, alltogether they make up 20% of solvers bottom caling range but people are probably overfolding here, so the half-pot should do its job even if you bluff some more combos rather than sizing down. I also bet 1/3pot cause it makes bluffing cheaper, people would need to call even more but they are probably quite inelastic here. On the other hand I don't actually want them to start calling more straights, trips and mediocre flushes so I am not absolutely sure about it, if people still refuse to call those hands mentioned above, I think betting 1/3 is better you can still cut down your river shoves back to GTO if turn gets called. K♠: without ♠ ♠ is a 50-50 mix ott, 2barreling it should be fine sizing it down, it's already a bluff type hand. More often than not 2pair and pair holdings become bluffs here, interestingly the straightblocker is even better (tp 100% bluff).

On the river you probably should go with it and bluff it. 3pair, top2pair and midpair+straightblocker are 100% bluffs whereas top-pairs are again 50% mix. Having a top-pair with the best blocker possible (K♠: blocks both NF and straight) I'd recommend going allin. Against some funnel-style nut-peddlers which sometimes fits 30/15 it's probably still not max ev ie if he has an uncapped flop calling range and an ridiculously tight turn calling range but I don't like the idea of starting to deviate with check-folds at SPR <1.