Co-rider whine, that's rare....
Radarman,
The first time around, about 6 years ago, I went for the big windshield solution to please my honey. This just shifted the complaining from the back seat to the front. If I wanted to be wrapped in plastic, I would buy a convertible. Also, she said the improvement, from the tallest after-market made, was minimal.
When we bought the 1800, I was bent on not replacing the stock Lexan shield. These tall shields make the 1800s look like a 1500, which is a look I am not seeking. Plus, I think there are some down sides to having them.
My sweetie is the same height as yours and when you throw in the higher rear seat, you can see that the only solution is a Full Face Helmet. The result of this is that I get to ride the MC with bugs hitting my face, which is the way I want it, and I don't hear any whining from the back seat. She really likes the FF, and reports that it solved the wind problem for her.
The Mirror Wings (one of two non-stock items on our bike) are quite effective in handling air flow, but I would take it easy on buying all the wind wings that are made. Your riding gear will do a better job than they will and you don't have to wash your apparel everytime you ride the bike, as you do with all the stuff you screw onto the bike.
Hope this helps