I think this is the bike that was at Johnson City. This issue has come up repeatedly over the past year or so. I stole this picture from another member (Oss, maybe?) in one of those threads. I think it belongs to one of the guys at Carolina Bike & Trike (although - I'm shooting from memory here, so I could be WAY off).
I am definitely interested in the outcome of your bike as I have thought about doing this for a while now. PLEASE post pictures of the process!

That's Matt's bike owner of Carolina Bike And Trike
www.carolinabikeandtrike.com he could more than likely hook you up with the bracket needed . Matt does great work and all three of my Valkyries has his products on them...Everything I've got from him looks great and fits perfect.Give him a call (704) 746-2791 if interested.