I would think you could contact Searay directly and not a dealer in SA. They should be able to source the factory original upholstery. You might even be able to buy the covers pre-made. Just be ready to have your bank account drained. I would believe this could get very expensive. http://searay.com/Page.aspx/pageId/9...t-Sea-Ray.aspx
Good luck and let us know what you find out.