I took it out for a test ride today and gave her a good shakedown. The rain was coming down in buckets and sideways to boot. At first my left leg was staying relatively dry and then the wind changed. I looked like someone had dipped me in the ocean.The deflectors did keep off a lot of rain and wind, made the ride much more pleasant.
.I actually used a drum sander in a hand drill to reshape the windshield, takes a little longer but no chance of cracking. If you have to drill any holes don't drill all the way through, just far enough for the tip of the bit to come through and then drill in from the other side, supposed to prevent cracking, did for me. I added the photos of the side view but I don't think they turned out that great. Post some pictures when you get it done.
The bottom tube for the gun rack is made out of a piece of three inch ABS pipe with a cap glued on the end. I cut the u shape out to make it easier to get the gun out but I don't know if it's actually necessary. I placed a piece of foam in the bottom to add a little cushioning to the soft gun case and protect the muzzle end of the rifle. Also drilled a small drain hole to let any water out. The tube rests on the footpeg and I drilled small holes to line up with the frame work of the bike . I use the holes to zip tie the tube to the frame. It stays on real well but does get in the way of the kickstand somewhat. I did think of using something more permenant like u-bolts and mounting it up a bit higher to get it out of the way of the stand but haven't got around to it yet. Good luck.