I'm no longer using the CB setup I put on my Tourer. It used an handheld CB and a no-ground-plane antenna. I made a bracket out of 1/8" stainless steel, which I polished up. The finish isn't perfect, but more time with a buffing wheel would improve it. It puts the antenna at the same angle as the sissy bar. See the link below for more information about the setup. PM me if you're interested.

http://photo.vrccservices.com/thumbnails.php?album=301