I read some time ago it's a CB Performance Eagle 2234.
Michael Sonex #145 from scratch (mostly) Taildragger, 2.4L VW engine, AeroInjector, Prince 54x48 P-Tip VH-MND, CofA issued 2nd of November 2015 First flight 7th of November 2015 Phase I Completed, 11th of February 2016 http://www.mykitlog.com/rizzz/