Lived in Sydney for 14 years but moved to the Sunshine Coast in 1985. Pomona, Noosa hinterland.
But now down in Caboolture part time an Forster Tuncurry part time..
Gray had (has ?) an XR750TT. He had a mate whose name was Greg. Thought maybe you were him.
You might also try Ollie Logan. You never know what he has tucked away. And anyone doing performance work on Harley's has work done by Ollie. (Whether they know it or not)