Regarding Fats Domino I clearly remember that Richard did the final set BUT on a Fridays Oldies Nighter. He played Fats Domino It keeps raining as the last tune.
Not sure if Richard finished every Oldies night BUT I can say he definitely did play it when he did the last spot. He also played Soul Source, Evie Sands, If that's what you wanted, Nolan Chance on Bunky, Job Opening and The Belles on NZ Action. All at Oldies nights.