1988 Sea Ray Seville 180BR. The aluminum extrusion that covers the fiberglass clamshell joint got ripped off when it got caught on the dock during a wavy day. It pulled the rivets right out then continued to damage the fiberglass and mangle the extrusion. The extrusion section that was damaged wraps from just past the rear passenger side vent around the rear passenger platform. Where can I purchase a replacement pre-formed extrusion rub rail?