Was going to question you but after a little reasearch, you are right. I was thinking maybe he's get a 3/45 offer, but it seems like he wouldn't get that high.
Yeah, looking at C contracts, he's probably a 12M AAV at best, 9M AAV at worst. 5/$60 is likely his offer and eh would absolutely take that over a QO, considering the injury risk for a Catcher.
If he'd take 5/$50 to stay, I'd do it.