I am restoring a Feb 1976 Brisbane built HJ Kingswood. Trying to identify the paint used on the non body panels (E.G. firewall, air cleaner, inner mud guards, boot & etc) is impossible. Searching through a number of sites revels numerous shades of black to grey to body colour. Filtering all this out to get the correct colour just gives me a headache.

Does anyone know of a site or a reference point where the correct paint codes are to be found?
If not I am willing to put together a spreadsheet (for the public to view) if I can get information from reliable sources. Hopefully I can get information so the colour used on a part that was made for a model at a particular plant and date can be obtained.