I'd argue that the OpenEZ/OpenCanard project was the first... sadly it appears to be gone (the website, anyways).

This sheds some light on it: http://www.homebuiltairplanes.com/forums/general-experimenta...

Note: This was based on the LongEZ, originally designed by Burt Rutan... a pioneer in homebuilt/plansbuilt aircraft (and the winner of the Ansari X-Prize).