Years ago I fashioned a half cab fastback. I took the hardtop and cut it in front of the rear side windows, effectively making a half cab. I then had a local upholstry shop make me a cover that extended from the cut top to the rear tailgate. I had them add a rear and side windows. It worked very well and was very tight. On good days I rolled the rear portion up. I added supports to the inside of the rear cover to supor the top while driving down the road. Otherwise, the wind would push down on the top and obscure the rear view. I don't have any digital pictures of the EB, but I found an old picture of it the other day while looking thru photo albums.