I think it's unlikely that villain raises worse for value. So the question is how often can he bluff here? Your river sizing could have possibly induced a spazz.
As for his value range, he is not repping all that much. QJ obviously, but what else? Stats look nitty, so he might not get there with J2s, J3s or raise them for this sizing. He might have slowplayed a set though.
Overall you put yourself in a tough spot by using this sizing. I would reserve it for thin value/blocking with weaker hands that can easily fold to raise and mix it up with some hands that can make a stand. AQ is the last hand I want to b/f here, especially since you block QJ.

I just might barrel river at every single card in the deck except J/K. Its always tough for me to decide at these two runouts whats best.

With more std bet sizing OTR its a fold ~ 50% of the time in theory. In practice its probably more then that as villains don t bluff enough rivers in general vs strong lines. The bet sizing you use definitely makes it closer but it can go both ways and it depends on how villains see this spot.

I d fold as a default.

What do you think of C/Cing river?
Really dont get value from too much KQ, QT, Q9s, Q8s, but if you C/C you give him the chance to bluff with missed gutters/oesd, & bricked FD's. Im sure he defend flop/turn with lots of BDFD's OTF and may gutters OTT given the sizing scheme.
Fold river vs nitraise is fine