Hi Renaultsan.
On German eBay there are several sellers of windscreens (Frontscheibe or Windschutzscheibe in German) for the ESPACE II. However the sellers that I have spotted states that they are not willing to send the windscreens, you will have to pick up the item at their shop; however I guess that they can be persuaded to build at crate for the windscreen and ship it if you agree to pau the extra cost.
one German supplier:
http://www.ebay.de/itm/Frontscheibe-Windschutzscheibe-Renault-Espace-II-/281289694712?pt=LH_DefaultDomain_77&fits=Model%3AEspace+II&hash=item417e2c1df8I did not find any on Uk eBay nor on the French eBay (strange!)
Good luck, and do not hesitate in contacting me if you need any assistance.
Hans Moelbjerg, Denamrk