The mention of the Evans VPs reminds me of another possibility, maybe a good analog to the Pou du Ciel in terms of mass appeal, gaining interest in a short time scale, 'easy to fly' and 'safety'....
The Bensen Gyrocopter
PS I met Bud Evans once, he struck me as a good guy. One of the guys who worked at Convair and did other things on the side... Pazmany (PL1 and 2) and Björn Andreasson were others. Andreasson was the originator of the SAAB/Bölkow mid-wing thingy.