I also looked at VDC's efforts - about 18months ago, when I was thinking of replacing my SD (with the 7.3) for better fuel economy and power.
Thier fit and finish was pretty darn good, and was impressed, but ouch, thier prices...
Plus, I just don't like the idea of having a conversion.
As for Ford Oz's plans, I would expect to see something this time next year (about 6 months after the US model gets introduced)
And thats a bit more than a rumour too