I've thought about doing the same thing for a while now. Seeing this thread actually kinda made me starting thinking about it more. I searched on Google and ironically came across a Raider that was powder coated.
http://www.foreverpowdercoating.com/auto-and-motorcycle.html
You can't even tell that it's not paint. It looks to have a nice finish.
Those pics are awesome, I would have never guessed they where powder coated.