Hi Phil and Riley,
Thank you for your comments, I would very much like to take a Shadow with me as they are few and far between in Australia unfortunately but after investigating and considering the shipping costs the price of the aircraft would at least double just to get it there and through customs quarantine. A 20 foot container was quoted as £2300 but only to Fremantle, I would have to sort out everything for it's arrival and processing which would add considerably more to the bill.
As Riley kindly pointed out there seems to be more sense in finding something other than a Shadow in Australia. The only thing is there doesn't seem to be so many used ultralights for sale in Western Australia. Still, moving something from the east coast should be a lot less complicated than bring it from the UK.
Thanks again for your help, does anyone know a very good used ultralight website like AFORS but for Australia?