Might have you sorted, Tony. Pretty sure we can get at least one of the bikes and most/all of the parts back to Adelaide after the weekend of March 11th.
(i would have called, but The Wife put my phone through the washing machine...that's four phone deaths in 12 months - I'm about to give up and return to my Luddite ways).
There MIGHT be space for one bike on the trip up, if that helps anyone.