RIP Our Friend
On all of the water pumps I have done I use a very light smear of RTV on both sides fo the paper gasket. I clean the front cover surface with a drill wire brush ahead of install. As far as the Cam Sensor, I have never had one fail or break during removal. However I have had several that I have found the factory ORing to have failed or was missing completely! A proper ORing with a tiny bit of RTV on the flat face surface keeps 'em nice and dry.