Originally Posted by Emoto
I reviewed the mounting instructions at that link and they were for a prior year GS. The 2013 is a complete re-design, and the place where your mounts go (up by the side of the windscreen and turn signal on the old bike) is different on the new one. Your mount uses two bolts to attach, but the new bike has only one in that location now. So - and I could be way off here - it does not appear to me that your GS kit would work on the 2013 R1200GSW. Would be glad to learn otherwise.
Unfortunately it does look like the 2013 is to different to work with the brackets at this time. But the crash bar mounts are a good option like JM did