All the other bits... Grills/ ducks, brackets will also set you back over £100 from a dealer. I still have my M bumper lying in my spare bedroom... Just need spring to come so I can fit it!
Liam - I was looking for a Black ///M bumper in good condition, to save on the respray costs. However, the advice I got from fellow forum members is that most cases, you'll need to respray. Many ///M bumpers come from write off cars and aren't in good condition.
Just something to think about from a cost perspective.
///M bumpers do look goo though good luck with the search