Protection from cold is the excuse I give to the wife 
So, you don't think it'll help?
It must help some...
Well, sure it will help some. So let's try to quantify it. No shield at all=0. My (wife's) Burgman has better coverage than my FJR1300, so let's give it a 10. The Rickman would be a 2, maybe a 3, My Hawk GT with the fork mounted F-16
http://www.nationalcycle.com/catalogue/FSeries.shtml with hand deflectors is a 5, my FJR is a 9, and the Burgman is a 10.
The Rickman just wasn't designed to protect the rider. Its to make the whole package slick, with a skinny tank and the rider tucked in.
But it is sexy. JMO
To answer the original question, AirTech has a universal bracket kit for about $200. Essentially you're looking for frame points. The downtubes in front of the tank below the steering head. And the steering head itself using hose clamps is what I've seen. You'll need something to suspend/support the headlight in the fairing, the fairing itself is not designed to hold the light, unlike a frame mounted touring fairing. So the $200 universal bracket begins to look like its worth it.