Thanks tigerdude!
Still a bit more to do... details, details...
I used a piece of paper to make a pattern for the windshield, and cut up a 2-liter soda bottle to use as the window. The stuff in the kit is pretty flimsy. (good for other things - I'll save it) Marked the windshield outline on the plastic with a pen, and cut it out with scissors. I made a tab at the bottom edge of the windshield to fit into a slot cut into the area behind the tank hatch, and glued it in place once I was happy with the fit. Used 4 small button head screws to attach the sides of the windshield.