OK then here is a river call-a-raise range for opp:
44,A5s,KcQc,KcJc,KcTc,K9s,Kc8c,Kc7c,Kc6c,Kc5c,K4s-K2s,A5o,K9o

We have 32.5% equity against this range.

I did not include top pair hands because I don't see why he would just call flop and turn and suddenly decide to donk the river with any of these.