David Hare-Scott wrote:

1) Any publicly available study of the potential of large scale permaculture

Lettuce, tomatos, cucumbers,
You can find the latter two in the ABC landline archives.

2) Any case of a large scale permaculture operation now working or under
construction

As mentioned above.

BTW. "large scale" means having significant impact on the Australian
marke, rather than large scale as in broad acre,