Indeed - the Mistrals (purchased through dealer in 2001) did come with "off-road only" plates ... so I had some same size replacements made with "Moto Guzzi V11 Sport" and used original rivet holes to secure - so they still looked "factory" (sorry Phil ...)
Docc - I dug out the flyer (also dated 2001 for North America) and the deal was "$1500 worth of accessories" with the purchase of a new 2000 V11 Sport ... which was the flyscreen (referred to as a "quarter fairing"), Tekno bags and Jacket at the time. The one I kept must have been for Canada as the application has Province / Postal code - refreshingly different, despite my fondness for southern neighbours such as yourself my friend ...
The 2001 brochure also had flyscreen and Teknos fitted in the picture - but with stock LaFranconi cans.
Gio