Hey Kieth.
I am at Victoria Point and have a CB500 1972, but my mate has a shed full of 750s. He also has a resto ,repair bike business and he specialises in pre 85 Hondas. His name is Murray and his business is retrocycles, he is at shed 6/ 9-11 trade st Ormiston. He has plenty of parts new and used.
email me if you want his number, this guy is a fanatic.
Allan