Hi rockhopper,
I live in France, north of Bordeaux. I could take off the old struts and re-build them but I would need to buy spring compressors etc. It is the right side that has a problem, a clonking going over bumps,probably the upper spring mount.That's why I was hoping to buy ready assembled complete struts. They are available for lots of BMW series but not the Z4 E85 apparently.