Got some facelift lights for the e39 but they need adaptors, was told they are 6euro or something but all I can find is these Hella ones

Hella 8KB157198-801

http://www.ebay.ie/itm/CHANGEOVER-KIT-BMW-E39-FACELIFT-HELLA-Cable-Adapter-Plug-Play-on-Facelift-/321307314060?pt=UK_CarsParts_Vehicles_CarParts_SM& hash=item4acf68878c

Are they the right ones to start? Is there a cheaper option?

Also while talk of lights, can the Xenon from the pre facelift be used on the facelift?

Thanks