Yes small planes like these two links. Similar to a slightly smaller Cessna.
I do remember reading about a crop duster that was being built and sold at Bundaberg also.
If you look at the quantity they sell it takes them out of the experimental category
This is apart from all the ultra lights. When you add this to the work done under license and the normal ability of Australian workers to rise to the occasion I believe that the government could produce a small fighter under license and make it better