I am installing a PSS dripless and am replacing the coupling while I'm at it. Willl I be able to put the new coupling on my original shaft? I have a 1985 Catalina 30. I saw on MaineSail's site that the new coulping will need to be machined. So will the shaft need to be as well? If that is the case and I need to remove the shaft should I replace the cutless bearing and our have the prop turned? I know that is a lot all at once but any help would be great!!