Dick,
Bluejay Models has the designs for most of Joe Bridi's planes including the Kaos, Dirty Birdy & others. If I am not mistaken,
www.bridiairplanes.com is the web site for Bluejay Models. I recently received my Dirty Birdy 60 kit from them and the wood quality and cutting was better than I expected for the price of the kit.

However like most Bridi kits, the instructions are somewhat limited.