I hear that Morelli Melvin has already designed a fully foiling kit for the F20c. This has been reported by Surf City. See pics:
http://www.nacra.ca/f20cfoiling-3.jpgFoils built by team new zealand.. Design paid for by Philippe Kahn
http://www.pegasus.com/log/Does anyone have more info on this? Perhaps they could be persuaded to sell it as an upgrade kit?