I know. Maybe I can cobble something together. Meanwhile:
http://car-from-uk.com/ebay/carphotos/full/ebay443729.jpg
Like this except cut straight around the back to eliminate the air vents that now face the wrong way. A cutline like the New Beetle convert. Then a curved edge behind the seats and a simple-curved 'barrelback' deck. Varnished wood with cream-colored pin stripes. Maybe a short flagstaff over the engine bay.
I found the cable to charge my camcorder, so I did a pencil sketch and took a picture.