Great post for someone new to the site, by the way. You're asking good questions.

I'm not so concerned about draws on this flop, because we should expect PFR to bet his draws, giving us value while perhaps luring him into thinking we're drawing and inducing river bluffs. We have position on sb so if he's drawing he's going to find it harder to extract value from us when he gets there.

If we donk this flop, we allow CO to raise his draws, which puts us in a horrible spot. Plus it gives him a fold button for his crap. When we check, he's gonna cbet a large part of his range. c/c definitely seems best here.

idk if I call all three streets, it depends. But I call flop intending to get to showdown.