My 1984 Hunter 25.2 has four rectangular (with rounded corners) ports, two each side of the cabin. In each one, there is an insert which, I have noticed, had remnants of a screen glued to the insert. Here are my questions:1. Does anyone know from whom I can purchase the inserts? I am missing one.2. Can they be purchased with the screen already attached? If not, has anyone ever replaced the screens? Is there a particular mesh size and epoxy that can be used to glue them on?