I went this route. Ordered just the Triumph Roadster screen hardware from Triumph and a Clearview Shield that fits that assembly. I'm 5'11'' and choose the 18.5" shield which I figure I'll be looking over from the research I did. Clearview products get very high ratings on other forums I browse. I phoned them and they were very helpful with my decision. The total cost was less than buying the stock Triumph Roadster Screen. The brackets are here, still waiting on the screen as this is a busy time for Clearview.
http://www.clearviewshields.com/shop/product.php?id=59
