That's a good idea, but not sure how feasible it would be. A lot of plumbing may have to be taken down to remove the sheet metal.
I noticed that some of the doors and hinges have grease fittings. It's probably a good idea to pack them with some grease, too.
Seeing how the trunk looks better than a lot of other interior rooms, I'm guessing that rust would be minimal.
It would be nice to get the emergency lighting system working in the boat to light up the trunk better, once it's cleaned up. I think it gets its power through the I.C. switch board, but I'm not sure.