It's in the October issue of Auto Motor Klassiek, it's probably gone by now. The price is certainly low enough.

00-EJ-68

Merk VOLKSWGAGEN
Handelsbenaming 481131 LS
Brandstof LPG (Liquefied Petroleum Gas)
Vervaldatum APK 10-09-2010
Datum aanvang tenaamstelling 18-08-2009

APK until September, and only registered in 2009. So the current owner didn't keep it for too long...