http://www.police.vic.gov.au/retriev...&status=active
This answers your question.
Are you sure that display cube/case is acceptable? in my brief discussion with an officer you must not be able to pick it up easily and smash it to get the contents out but then my argument was what's the difference to smashing the door of a very large display unit, the answer was perception of ease of break in.
So it possibly?
Speaking of redecos, since MP10 got a EVA Unit 01 colour scheme, I hope Megatron gets a EVA Unit 02 colour scheme. That way you could even justify something like an orange top barrel, because Unit 02's colour scheme is red, orange, white and black.
But I'll just be happy to get the normal version if I can only get one.
Robzy: I don't know about other states, but in NSW fictitious imitation firearms like Han Solo's blaster require a permit and safe storage compliance like Megatron. While Solo's blaster is based off a real gun, other fictitious guns which aren't but look realistic enough are also restricted. An example of this is Deckard's gun from Blade Runner; this is also prohibited in NSW despite not being directly modelled off any real life gun. But it's overall shape and colour make it look realistic to a lay person who knows nothing about guns, even with the two triggers (because if a person is pointing a gun at you in a dark alley way, you're not likely to stop and count the triggers; you're more likely to perceive it as an actual threat).
When applying for the permit you have a provide a description of your safe storage and I included a detailed description of this display cube. Considering that the NSW Police Ministry approved my application and granted me my permit, I'm assuming that they found it acceptable. I know of other people who use similar display units who've also had their permits approved too (in NSW).
bakakun: the Megatron Club page has a proforma letter to submit to the Police in application for a permit. I recommend looking at that and modelling your wording off that template. The Megatron Club was set up by a lawyer and thus the sample letters provided uses legally preferred/acceptable language.