Hi all,
Just stumbled upon this and thought it might be useful to others:
https://greenfield.com.au/manuals/It is a new addition to the official website, which looks like it went up in December last year. It has download links to the manuals/parts lists for a fair few machines. It also categorises them into "historical" and "supported" sections - so it seems like they (Cox) are still providing some parts for older Greenfield machines going back 10-15 years or so.
Hopefully others find this useful/interesting as well.
RLP