I have a 1985 O'Day 26 with a Datamarine wind speed/direction indicator mounted on the masthead. I am guessing that it is a standard model. I am missing the vane at the top and the short cable that runs from the plug at the base of the mast to the control box just over the head on the bulkhead. Does anyone know the Datamarine model that was standard for this boat and where I can get parts? Thanks.