The hood comes up and down easily, no need to remove the shield. I have attached it to my roll-bar. I got the attatching points by welding a regular piece of iron to the roll-bar.
The shield is made in plexi-glass, 6 millimeter. Cost is neglectabile. Then, two aluminium strips 2 millimeter thick and 40 millimeter high holds it the plexi in a firm position.
Then a pair of door hangers from the local hardware store did it. I used dome nuts to make it look better ( I think it looks great).
I'm retired and years over 60, so this shield helps us to go on driving even in cold weather
May the photos speak for themselfes! So, now you may enjoy your Duetto even in wintertime!