Hello All,
Have been lurking this thread for a while and thought I would throw in my two cents.
I don't know much about customs for Magenta Hypercoaster parts but the issue with expecting that the containers are all sitting at a shipping yard is demurrage.
Containers that are released to the wharf from shipping are normally only allowed a free dehire period of around 10 days. Anything longer than this and the charge is significant.
Sometimes this is unavoidable with issues such as customs and Aqis holding up proceedings but if the stock has landed in Australia it is either off of the wharf unpacked at a storage warehouse, MW are paying a fortune for demurrage on what has been speculated as 200 containers, or they own their own containers which seems unlikely.