I don't think you can call that river bet.  Two things that polarize him to a big king are his river bet size AND the turn being bad for him to bluffing with air on.  His draws are QJ and bd spades, so there are bluffing combos, but the two things i noted above make a king seem more likely.

preflop: u can make an argument to call even all offsuit aces   ,  assuming that we will realize 65% equity oop we will be doing fine with a good gameplan..maybe here because he cbets on the higher side and bet turn a lot we can start like A8o+  or A7o+ ,   pretty interesting what other will think about it !    A2o has 44% of equity , A5o 46%!

his river cbet and aggression looks really  low , so i would fold there , and vs his bet i assume  we can fold quite a lot 49% of the time there , so prolly defending mostly our trips + could be fine!  i would call pre K6s+ so i will have a lot of them....hmm  if we call river trips + we will be folding 69% of the time... but we also have stil all combos of KT and 33... so we could sometimes bluff X/raise here   

few questions:

1) would u call on the turn all TX hands???(if we call our total range that folding will be 30% which is fine of course) if not what TX would you consider folding?  maybe calling all not that bad still his turn barrel is high, we can assume he will barrel a lot.... we have to fold some TX,  if we are not folding , we will be exploitable on the river!   what do u think about it?

2) on what street should we have a raising range in that hand?? our range is pretty strong so we can afford it  or should we wait still for the river?? guess raising turn would be better i am not sure...  bluff raise AJ and also for value KT and 33, maybe KQ+ occasionally on the turn

1) i think i prefer calling w Tx that dont have blockers to his QJ AJ type hands and spade draws, like having AsTx is pretty bad i think, maybe is better to call JTdd than AsTx? what do you think? crev is the way to solve this things i guess :D

2) i definitely want to raise OTT because of his low river cbet freq