Dutchy, all Holden dealers will have the oil filter in stock as its shared with some other GM engines Holden use. Also with the 1.4tlr and 1.6ltr turbo in the cruze a few parts will be shared.
If Holden uses an Opel part they will be the same part number. If you ever want to know if a part number is available locally just shot me a text and I can look it up. I also have access to the Opel parts catalog.