A plastic composite shell with flotation foam blocks built in should weigh less than the steel original.
[www.schwimmwagen.co.uk/page-restoration.html[/I]
Like an Igloo cooler. And Bigelow's space hotel technology suggests inflatable hubcaps are possible. These are the subframes that need to be electrified.
http://www.schwimmwagen.co.uk/page-restoration.html
One could fake that front end with a Type I beam and Rabbit axles. Are those 3D printers that make whole car bodies available on the intertoobs? Would this sell better?
goautobots.blogspot.com/2011/07/vw-schwimmwagen-see-in-google-earth.html