Thanks much Steve. I did notice that when I came across a link to GDP's website, but you know how it is with a manufacturer like that: it may be released, it may not be released, the company might disappear at the drop of a hat etc.I have all the various Golden Dragon B-52 decal sheets including the one for the RB-52, which like you I kind of found it odd that I could get the markings but not a conversion.
Thanks again for your help!