(I accept no liability for any work that I have not carried out myself. These articles are meant to provide information and guides for you, and any work you do is at your own risk.)
New and Remanufactured Parts
Main European Suppliers
Simon Automobiltecknik, Germany Carjoy, Matra Specialist, Netherlands
Politecnic Automobiles, France Garage Clement, France
Don't forget to search French eBay (eBay.fr) as well as Belgian, Dutch, German and Spanish sites too.
If you have Koni shock absorbers that require overhauling you could try:
Shaun Pickering. S.P.Supension. Spalding. Lincs. Tel. 07811 108123