Sky light/Hatch repair

Seems like the multiple layers of silicon put on the hatch over the years is not enough to keep the hatch from leaking, so yesturday I opened a can of worms. Dissasembled the hatch and attempted to scrape all the rubber off the roof, in the process I scratched some of the paint off right down to the steel. The rubber was definitely strong, but didn't prevent leaking. So strong that I couldn't get it off, had to cut it off with a knife and now I'm in the process of sanding off the bits that the knife couldn't get. The origional install 7 years ago used some sort of rubberized putty, thick and excessive which caused the current issues, bending the hatch in the process making my resealing a little more challenging. This morning if the weather holds I'm hoping to clean the rest of the rubber off and then paint the spots where I scratched down to the steel to prevent rust. I'll use a rust protection called tremclad. Then I'll clean up the hatch which is covered with a fine algea and dirt around the seal. I'll put a bead of marine grade silicon where the hatch will sit, then place the hatch down and fill in any remaining gaps. It is important that this job is done perfectly because we can't afford leakage once we get on the road so I don't mind spending a bit of extra time on it. better get to work...and work

Jobs that also need attention in the next couple of days.
Water build up in one of the lights
general cleaning needs to be completed, washing floors, walls and in all the cracks
floor needs to be patched where the seats where taken out.