The 1987 and later have Lewmar ports. I don't remember the hatch maker but I believe it is Bomar, not that it matters.
wbuckl, Lewmar still makes the alum. ports and they are avaliable from the SBO store here. If you have a 1986, check the cut out dimensions to find out if they will work. The Lewmar site has all the dimensions.
Dave
s/v ARIEL