I was at the Clarendon swap meet ( SYD ) today & had a chat with the fellas from Rust A Problem, they can provide some rust repair panels for LC - LJ, LH, LX & UC Torana's. The quality of the panels looked good and finished in a red oxide etch primer.
The price for their panels is not bad either.
See link below
http://www.rustaproblem.com.au/
Aaron