I actually ordered them directly from the
R&G Racing webstore, and had them ship them to me. It took about 6-days via post.
Jack Lilley also offers them but I figured I'd go right to the source.
I feel much better about the radiators ability to survive an "unplanned get-off"; easy as pie to install so long as you have the right torx driver for existing mount bold and rachet set to put new stuff on.