If it was me, and I had run into this when I developed this mod 15 years ago, I would investigate moving the top mount points up a little. Easy when you work with metal and can fab parts as needed - but there may be a way to do this without welding equip. Drilling new holes and/or bending the top brackets.
If I was to address your problem without welding, (see pic) I would cut off the top of the angle bracket at the red line, and drill a hole at the green circle on the same bracket, and then use a nut on the inside to move the mount point up 5/8" or so. If you can weld, butt-weld a piece of steel on the bottom edge of the windshield bracket then drill it to move the bracket up as much as needed. Of course the metal plate is held 1/8" away from the standing part, with welder's magnets, and weld both sides, and grind off the excess weld. This can be MIG or TIG welded. If you use SS plate and SS weld, you can shine it up so as not to need plating, and the chrome that discolors will be hidden behind the fender washer. Leave the previous holes in the shield bracket and you have a reversible mod.
