Try contacting Twisted Throttle. Supposedly, MRA has a Touring and Vario Touring windscreen available that can be ordered from their distributors.
The MRA Vario was the only screen I put on my V-Strom (out of 4) that allowed me to ride at freeway speeds in relative comfort. They're great shields.
The Vario will look quite a bit like the screen on this bike...but likely a bit taller. The lip mostly defeats the need for a REALLY tall shield.
