There is a place called Bristol Bronze in Tiverton, RI that can cast a new part, if you provide the old one. Roger Winiarski is the owner and gave a presentation to our YC a couple years back. He can use the old strut to make a mold. He brought many samples of parts that had been cast as replacement fittings and fixtures for both classic and modern boats. Contact info is on their website. Contact him and see what he can do for you.