Hi Bill,
I build those mounts for Van?s and I do have one idea. The main problem besides building new fairings and brake lines is the fact that the center two attach points on your old mount are in a different location then on the new mount. I have not yet altered a new mount to match anyone?s old mount but I have been asked about doing this several times.
You would buy the mount and legs from Van?s, I would pick up the mount, make the changes and send it on to you, I would also need the old mount to verify its dimensions.
I don?t think it?s too complicated, if you?re interested in that service drop me a note.