i might be of some assistance.
i recently returned to uk from nsw with my gsa 1200in oct 2010.
crated the bike myself and shipped myself via a removal company.
used movements international in sydney who liaised with white and co here and . Built a steel frame flat pack crate from an old kubota machine crate in a previouse life. right width and length only needed making higher. Was working for a dealer and was going for scrap otherwise.
Tex screwed 1/4 ply to it to protect bike from other packed objects. Total volume 4 cu/mtr.
Cost to make approx 150 pounds including pit stand bolted to floor of crate and wheel tie down.
Total shipping cost 300 pound only . no duty no vat as owned for 12 months and was keeping not selling on within 12 months. not sure of duty rates and gst entering oz. Most probably will have clearance and fumigation costs there.
Reason for crate and box was that they are able to pack as goods not a vehicle therefore able to utilise all space in a comntainer and stack all over it greatly reducing costs.
Will be returning in feb 2013 myself to perth and therefore still have the crate and willl be doing the same again. Only difference is that i will have to check suitabiltiy of ply used i.e bug treatment.
Drain all fuel leave oils,disconnect battery. I only removed handguards as were slightly rubbing i crate and panniersas were slightly too wide so created compartment for them. ride in ride out crate tied down with ratchet straps and wheel chock and tie downs. Sit bike on centre stand too as stops bouncing and saves pulling down on suspension.
can provide photos of set up if required.