M_Boats: New to email list, looking for a replacement centerboard

Hello, I am the proud owner of a M15 on Spirit Lake, ID. It can get pretty gusty here and my "Penelope" can get rocked on the dock pretty aggressively. The centerboard front pin had worked its way loose (unknown at the time to me) and during a sail last season I notice a bump... then no centerboard. My board is lost in the deep and I am looking for a replacement. Does anyone know of a source or specs for the size, shape etc... To have a new one made? -Don