You're not getting any replies. Many would like to think there are still people around for this.
The DS Motors type workshops have all but closed. Through this site "The Garage" at Woodend, Vic. came up as a workshop happy to work on older cars. Maybe there is someone like them closer your way.
Ian Steele at "Just Cits" near Maleny could do it but might know of someone else if he doesn't want to.
Good luck - - needless to say this Froggy site has been the lifeline to people like us wanting to keep the old cars alive.