Good info Walking Eagle. I think I made 3 templates until I matched the angle of the stock screen. I used manilla folders as template material, which would not have worked for a test ride, though I didn't have that option as the hack was apart at the time, and SWMBO wouldn't ride in it on the trailer......
Haven't had a chance for her to test it yet as a major storm is coming through at present. If I need more height I will use your heavy cardboard trick and tape it on at different heights.
At any rate we'll have the stocker on for the trip to Sedalia as we can bring the full top along in the trunk.