We are new owners of 1989 31 ,and the lens is missing from the steaming light.With binoculars,it looks like a Perco,maybe made of aluminum ? Other IP's in the marina all seem to have "aqua signal"combo steaming/deck fixtures.Have people replaced the original with these ? I cannot find a reference to this "aluminum"style fixture,or lens.Has anyone been through this dilema,with advice?