I used the kit from ECS Tuning. It wasn't cheap, but was complete. IIRC, it included everything except a couple of o-rings and the camshaft seals. I would recommend that you order new ones. They are kind of like small piston rings that go on the ends of the cams. I think there are three per cam. You have to remove them as part of the process and they can break pretty easily. My philosophy is that if you have to remove a seal of any kind, to replace it with a new one.

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2002 X5 4.6is - Imola Red/Black (Sold)
2001 740i M Sport - Anthrazit Metallic/Black (Sold)
1998 M3/4/5 - Technoviolet/Dove (Sold)
2003 Z4 3.0i Sport - Sterlinggrau Metallic/Black (Sold)
2009 Mini JCW (The Wife's)
2015 i3 REx - Arravani Gray/Tera World (Daily Driver)