Rust repair work in Canberra

Morning all...

Any recommendations for rust repair work in the Canberra area? Need some rust taken out of my 71 Superbug's heater channels which I suspect will require the installation of heater channel bottom plates. I get the impression that most shops these days are more interested in quick bolt-on, bolt-off insurance work rather than this sort of thing so any recommendations appreciated.

Thanks in advance
Marco