Wheel arch / mudflaps question

[fxslin]

As part of my "getting the X5 in perfect condition" dream, I arrived to the mudflaps!

My mudflaps and wheel arch "trim" seems to be missing a few screws and rivets. And causes some rattle on bad roads (we gots lots of them in norway).
So I wanted order some new ones of these, however I can't seem to track down the correct part number (or specs for them).

I've been looking at realoem.com, but I can't seem to find the mudflaps specs defined there.
I only found this one, which covers the wheel arch that I have on my car.

RealOEM.com - Online BMW Parts Catalog

So I hope that one of you members might be able shed some light on these question:


1. Mudflaps rivets/screw partnumber (see image, should it be screw or rivet there, same piece is missing on both sides)



Or is just generic black universal scews used here?


2. I seem to be missing the rivets the joins/connects the wheel arch and the step board.




I believe this to be this part: RealOEM.com - Part Search with part number: 51111944537

Can anyone confirm this or correct me on this?

3. My rear mudflaps are also loose. Looks like its only screws used here, similar to the front ones.
However one screw looks like is screw with a oppsite "nute" or similar. See image.



I have not been able to track down this part either, I assume this is just generic/universal black scews as well?

Just for reference: my X5 is a 2002 3.0i (us version).

I've appreciate any help with this. Thx!

Cheers
FxSlin