A for sale price? Dude, I think there is exactly 2 copies left in the world, if that:
Fl 282 V-10 28368 Midland Air Museum, Coventry, England. Partial aircraft, frame with rotor head & wheels.
Fl 282 V-23 was at one time to be found at the National Museum of the United States Air Force, Dayton, Ohio.
So no, it wouldn't even BE for sale. You'd be better off building from scratch, like the Colorado guys did with their Panzer 3 xD