Yikes. Fold flop. Fold Turn.

Given your reads though, cold 3b flop is probably better than any of this.

okay def agree on the fold turn. but definately not on fold flop or cold 3bet flop. i dont ever think he keeps bluffinfg OTT if he is called OTF. Jes, he could possibly raise a set OTF. but IF he is capable of raising a set, - which is just not a good raise -   he could be capable of raising a hands like a BDFD/BDSD like QJs or JTs. which would be a great play if hero folds 99% of his range and UTG is a nit (and only goes to river with sets). 

his turnrange is TcJc,QcJc, 99,66. i had to call the turn if he wouldnt overbet...

Cold 3b the flop is better because it forces UTG to fold basically everything. Also you do not let CO realize his equity, with his bluffs. I think it achieves the result you want in a much cleaner way than overcalling.

my cold call on the flop looks as strong as a cold 3bet. if his bluffs would have more EQ i would definately agree - like OESDs or at least GSs. but since his draws are backdoors he will shut down on the majority of turncards.

lets assume i raise. i make it 55$. this should make him fold his bluffs and proceed only with his sets. even if he raises AA he has to fold that. UTG has a cbet of 80% so tends to cbet a bit too lose. i guess we can expect him to fold at least 90% of the time. to make it a bit easier i ignore him and take a few combos off of MPs range wich looks to me like:

AA (2) 33,66,99 (7), QdJd,QsJs,QcJc,JdTd,JsTs,JcTc (6 combos)

i risk 55$ to win (30$+10$+16$)=56$

i need 50% FEQ to make it break even. assuming he folds AA/draws (8 combos) and proceeds only with sets (7) it should not show any profit or loss -> ~0EV

same assumtions on the float.

i call the flop and basically risk 30$ to win the pot. i expect him to split his range OTT almost 100% of the cases. but to not assume best case scenario i take 10% FEQ OTT since UTG can overcall and i´ll take another 20% because he could c/c AA or c/r his sets. this gives me 75% FEQ OTT if i call the flop.

i call 30$. the turn pot is 86$.

he checks about 60% ( mentioned AA/ "c/r attempts" and his air) wich are 75% c/f.

means 86$ x 60% x 75% = 38,7$ TurnEV - 30$ flopcall ~9$ EV

wether i call or raise both options have advatages. and since i/we cant allways hit ranges 100% right both moves seem to show about the same EV -> break even

though, if there is any positive EV in this spot i would rather float given the small EQ of his bluffs and his rangesplit on the turn.

Really don't think anything you say that can justify the flop call. It's a call bluff and you are basically hoping for a lot of circumstances to take place so that you can try and bluff at the pot later. Just fold and move to next hand.