I recently bought an old Starcraft 12' aluminum runabout and want to make a few alterations. I was hoping to get some helpful info on this forum, so Thanks in advance. I want to first prep/paint this thing and having no experience with this kind of project, I'm looking for a step by step process to follow. I have performed a leak test and no drips, I do want to seal/paint the inside as well. What products would I start with?