York,Welcome to the world of Columbia Yacht owners.I have an 8.7 which is a bit larger than your 28 and with an inboard diesel, and am in the process of redoing the interior and one bulkhead. If you have specific questions, I think you'll get more response.I'm loving mine, and having a blast, can't imagine what it will be like when I get launched.Larry WilsonColumbia 8.7 1977Hull #60 AllAboutMeRichmond,(Deltaville)Va