Hi
I believe that I may have solved the mystery. I've used my old friend "Google", what did we do before it was available, and think I've found the answer. It looks like I have a Tony Nijhuis plan for a Midget Mustang from 2009 and a laser cut wood kit for a Peter Miller Midget Mustang from 2006. So now all I need to do is get hold of the correct plan.