Sunfish.
Perhaps re-read your thread from April 2013 on the same topic.
http://www.pprune.org/pacific-genera...struments.html
Amiri01, I'm not convinced that paragraph 2 is suggesting what you say it is.
http://www.casa.gov.au/rules/1998casr/021/021c04.pdf
Any choice of engines, propellers, wheels, other components, and any choice of materials may be used in the construction of amateur built aircraft