I consigned Martin's motorbike to Worldwide Shipping Services: 450Australian for 2.2m**3 to Tilbury, UK. They're at about 1617 on a very long road that goes south down the east side of the airport. Check White or Yellow Pages for road name or phone number.
equally, Patricks are in Sydney and I'd have used them if I'd found them first, but I was pre-occupied with getting my bike to Cape Town by air. they have an office near the airport customs.
it's easy in Sydney so it'll come right, but customs need a day or two to come and clear the carnet. they're very professional.