Need Hunter 33.5 transom seat back rest cover made

Mar 15, 2017
18
Hunter 33.5 Lake Dillon, CO
Hi again, I have a 1993 Hunter 33.5 and have foam on the stainless railing that acts as a backrest on the dual transom seats. I would like to use sunbrella cover made for them to protect the foam and make it match the rest of the fabric on the boat. I am having no luck with any local vendors. Does anyone know of an outfit that may already have the pattern for the curved stainless rail that can fabricate a backrest cover without having access to the boat?
Thanks,
John