I started cutting up the 1.5 x 1.5 x 1/8 angle today. It looks like I will be one piece short but I have some scrap 2 x 2 x 1/8 that should be big enough so if I don’t need to re-make any parts I will have enough.
Welcome to my builders log for Sonex S/N 767. It won't be as big as a real 767 but if you scale the speed I bet it will be almost as fast
Dave's Sonex Builders Log 