First thing to address in IMO would be preflop, I would advocate folding this preflop based on how poorly it plays generally vs a UTG opening range (especially facing a 4x raise) plus it's not a hand we can continue with against a squeeze.

On the flop when CO bets I think he can be stabbing with a lot of PP hands that need protection and maybe some broadway hands with a bdfd that intend to barrel.

When UTG raises it seems a weird spot because you wouldn't think that he would raise Ax on such a dry board. However I'm struggling to come up with natural bluffs for villain. He could just be taking the bottom of his range and bluffing with it as he should have a significant range advantage on this board but I don't know how often that's happening at NL5.

If you've seen villain spazz out a lot in the sample that you have it may be a case of closing your eyes and calling down but if not I think it might have to be a fold as gross as it seems.

very easy fold preflop, this is a huge leak that is much more pressing than figuring out what to do now ;)...
given that it is nl5 and the big open I would usually fold, another option is to call and then shut down/fold unless we hit quads or the T

Folding preflop 4 sure. (think about the rake)
now calling Flop and proceed cautiously

Thanks alot for your thoughts, much appreciated!