So if I'm going to do the chain, I also need to replace the sprockets. I've read that mixing chains and sprockets with new/old is bad...

The VANOS units I can't change, those are all one pieces so I can't touch those. However, for the camshaft chain I can replace the sprocket on the exhaust correct?

Parts needed to replace chains/sprockets:

11311741115 - Exhaust sprocket x2
11311747437 - Timing Chain Upper x2
11311435026 - Timing Chain Tensioner RIGHT
11311435027 - Timing Chain Tensioner LEFT
11311435028 - Timing Chain Slide x4
11311741746 - Timing Chain FRONT
11211742435 - Timing Chain Sprocket LOWER

If I do all this, and change oil regularly, using good oil (Rotella T6 5-40), will I be able to get 200K before I need to do this again? Are there any other pieces I've missed? Gasket or o-rings?

__________________
Nathan
01 4.4i Pearl Beige Metallic