I think in the US some folk had a "Surrey" top ... not sure of the name, but just a top made of perhaps vinyl or canvas, and which used the original hood frame and the windscreen fasteners a the front, the rear of the material with just with a couple of straps from the frame down to leave the back opened and keep the material taught...Think Jerry Wilburn had one such..? Not much use on a Ferrari though (-:
Link below is a pic I took of my Mog on our early morning Amalfi coast run that I found in a gallery I posted on the TM image Library..
https://www.tm-img.com/image/F5GjW