Life happened and I stopped working on this for a while, so time to get back into it.
After cleaning the sump gasket surface on the motor, I then moved to cleaning the sump itself. Easiest way I have found is to use a razor blade and some elbow grease.
Then slazed on some good old permatex grey
And back on the motor she goes.
Next up was to start cleaning all the old water pump gasket off. Out came the razor blade again.
Looking better but still needs some more time, maybe even throw a caramel wheel in the drill and zing it off.