Gkiller & wjb3805
The fairings are frame mounted. If you can get the mounting bracket that bolts to the rear of the headlight bucket, it is a huge advantage. I did one with and one without.
The first problem is finding a fairing, then what all you get with it, ie. mounting brackets, headlight bucket and lense, guage mounts, etc. Also most of them have some sort of damage, so that must be considered. Then there is quite a bit of modification required to make the wide Rocket front forks swing freely inside the fairing.
I believe they made these fairings in one form or another from approx. 83 to 92, not exactly sure but I think that is pretty close. I thnk they were fit on the FXRT, FXRD, and the FXRP, (police bike).
Having said all of that, I can't say I'd never do one for anyone else, but it would largely depend on what you had to start with. I will be glad to share any info I have learned with ya, doubt there is enough interest for a "how to".
How about I just sell each one of you one of my bikes and I start from scratch.

I did a much better job on my second one than my first, even put in a big air scoop to get some cool air to my K & N's.
Lonnie