M3 Rear Bumper re install help

My M3 was involved in a small fender bender, where my rear bumper was slightly marred and knocked off of its mounts. I pulled the bumper off when I got home because it was sloppy and barley hanging on. After checking everything over, I'm trying to re assemble it, but I'm not sure how. I've looked around, but I can't find a thread that goes in detail about how the Carbon Fiber brace, the foam support, and the bumper all go together, as well as the the bumper and the rear splash guards also looking like they connect.



Does anyone have any solid help to get me on my way? What hardware do I need, and how to do I do this?



Here's what I have so far:



I've got the realOEM diagrams, but I can't decipher these for crap: http://ift.tt/1CQwRKq



http://ift.tt/1CQwRKv



And this is what I'm working with:



It looks like ends of the bumper and the splash guards go together, but I'm not sure on the hardware:









But I'm not sure with what hardware.



Here, it looks like the CF brace mounts to the bumper, but I don't know what part, as realOEM doesn't show the CF brace as having hardware here.











Lastly, it looks like the rear bumper and the foam support are secured using the large spiral plastic screws, so I think that this is correct at least (black screw in middle of picture:





So, can anybody here tell me what hardware I need, and what else I'm missing? RealOEM also shows parts 17 and 18 in the first link, I'm not sure about those either. I'm totally at a loss, and in need of some help.