Yes, Brook, you have a '57 Rocket II. I had a '56(?) Rocket I for over 12 yrs before buying this one which I like far more than the 1 because of the ease of access to the rear area. As for the windshield, Mr Boatnut, a fellow member on the Feathercraft forum, Rocketman, makes them. That's where I got mine. Fwiw, he has clear, bronze and the smoke. He made a bronze one for my gold Rocket I that looked very nice.
You guys really should join the Feathercraft forum as its made up of VERY helpful and good down to earth people. Attending one of our get togethers can lead to a very difficult to break habit.