Call D&R Marine
Call Rudy at D&R Marine (508-644-3001) to start. He should have what you need. (I called him last week for a lense for a portlight for my O35, and the lense arrived about 3 days later.) There are Beckson ports on the O35. If you go to that site, they have pretty good directions for installing/replacing ports. (see link) You can shop around if you want to look for a better price, but calling Rudy has worked for me more than once. Ed Ryan
