I have stacks of case parts for MacBooks Especially top cases. They are discoloured so have been removed, but many work just fine. PM me if you want one Eul. Won't cost you much.

As for screw diagrams, thanks for the tip MYM, but I could gut one of these in my sleep. It was your painting expertise I was after. I have never used clear coats on anything, but I have heard the term bandied about in various places and figured this would be a job where one (or more) would be required. Can I accomplish a good finish with off the shelf cans of auto paint?