Sources of Streamstay.
Have you checked with Rig-Rite(Related Link)? All the diagrams and part numbers are there at least. Maybe a phone call and they could tell you where to look if they do not have it.I tried an E-Bay search, no luck there. You may have to search some salvage yards. Or maybe it is time for a new furler. Mine still works well but I worry about its age(1979). That solid rod is holding up the mast. Mine is a cutter at least so I do have the mid-stay.