Due to the lack of new info about the case, i checked the daytime/nightime pic of the yellow/white campervan again. AFAIK we never really found out, where it has been taken.
According to some features in the pictures like a sandy road, reed, wooden posts connected by a rope or some kind of wire i came to the conclusion, that it could have been taken at a golf court.
By checking some google pics from courts in the area, Silves golf court for example, i would like to see some similarities between some golf courts and the features in the pics of the van.
Unfortuneatly i didn't find a perfect 100 percent match in the wooden posts, but i will keep on searching....