uummm where do i start okay for people that are getting there car shipped in a container u can get insurance for it as it cost around $300-$500. this is probably the best as you should get people from japan to take photo's before getting sent so you have reference and also note any damage if it was already there.
About the taper proof seals thats bullshit as soon as the container is pulled off the ship it will be opened as customs do check them and they have to be in quaratine so no foreign disease or insects or any of that stuff comes to australia.
this is a standard procedure..
about the wharfies well it doesnt happen all the time its not a common thing as they will get into a lot of sh1t if they do get caught best thing to do is get a cutoms broker for the container .This means customs will open the container with car in it and quartine car after this the container will be shut with new seals and can be delivered to where ever u like but this also comes at a price ! car will not be started! and car is still in container will seals not broken !
or when u get the b/L u can go to the wharfs and watch them unload and watch your car being handled by the wharfies straight to you!---easy way but involves a lot of time.
hope this helps ill try and answer anymore questions if you have any.....??????????????