MS 250 small parts needed

[Stihl newb]

Hello,
I am looking for a few small parts for an MS 250 I am working on:

* Cover washer that goes under the clutch Stihl Part # 11211621001
* black plastic "SLIDE" that goes between the air cleaner and the cylinder Stihl Part # 11231414001
* the two screws that hold the cover over the chain stop mechanism. Part# stihl 90754784155
* Stihl piston wrist pin C Clips ( 2 )

Thanks in advance!