It could be worth checking with the factory which wrap they use for the Aus models.
I think that I saw on a photo of the Australian model that the wrap was white. That would infer fiberglass. The stone wraps, made out of rock wool, are steel grey. I've used both. The rock wool line degraded quickly and fell off in chunks. The fiberglass held up longer but had heat discoloration. White is prone to that. Pick a darker color. Much cheaper as well.
