I have some pictures of the ducting without the hatch on. The outer parts are for brake cooling and you can see them blocked off on some tracks. The inner portion does seem to just pull air from the top and put it into the diffuser stream!

 

Do you have any more pictures you could send me? Anything at all even if it's as simple as a fuel line I don't mind.

 

I messaged you onsite about the Hatch I don't know how to Dirrect message you on this website.