Hard to believe there's been 177 views of this post and not one reply!
I've been checking accessory sites at least once-a-week for these since I got my RL, but I guess the lack of interest in this post demonstrates the lack of interest of the suppliers to offer the rails.
It's been awhile since my original post, so I'm bumping this up in hopes that maybe a new member might notice it and respond with an idea or suggestion.