Since only the look and shape will be the same and everything else different (all the way down to using carbon fiber vs aluminum for the primary structure) who has done the loads analysis and strength engineering to ensure this thing is indeed flight worthy? And he's using a V8 car engine (looks probably like a small-block Chevy engine) rather than an aero engine? Who's done the analysis on that? How's he going to get this thing certified to fly, even in the Experimental category.