A further update: Rang Parnell Gas in Victoria and asked the question regarding system availability for the Disco 2. The reply was not available in the short to medium term as they are too busy, so I have contacted the Office of Energy here in WA and received great assistance from one of there inspectors. I will be sending an email next week to their principle engineer explaining the problems for D2 owners plus all the research I have undertaken and will be asking for permission to import a front-end system from the U.K. coupled to a locally supplied cylinder. Will update once I receive a reply.
Maggsie
