I spoke with National Cycle about this last month. They confirmed the part numbers but warned that the shape of their Ninja 1000sx shield may not clear the mirrors on the KLR650, since the mirrors on the Ninja are fixed on the fairing, and the mirrors on the KLR move with the handlebars. The shield will bolt on, but may not have a compatible shape. They also told me they expect to have something in January/February for the KLR.I just learned that the part number for our windscreen is the same as the 2020 Ninja 1000sx. So the larger windscreens for it should work on the KLR.
3D Cycle Parts makes a set of brackets to lift the windshield that looks promising for under $50. Puig also makes a clip on extension that I've heard works good.Calsci so far...used them for most of my bikes. Also just saw a 3d printed kit here on the forum. New here, just getting started!