As far as I know, the designer had an accident while testing one of the gyrocopters, I'm not sure if it was DOHC EA82 powered, but production run might be pretty short ... and yes, they look very interesting, worth to save an EA82 DOHC converted engine, on a Museum.
I agree, I dislike timing Belts... in a car, the worst that could Happen is that your car left you stranded in the Middle of Nowhere if a timing belt fails... now think about the same fail happening, but in the middle of the atmosphere ... ...
Kind Regards.