I got same advice, all customer cars bar one on 1st ship. 1x dealer car only for ALL of QLD for the foreseeable.Agent has advised my car has been built (I already knew this a month ago from IA) and is at the port awaiting next ship.
He did not know when likely to be shipped but probably in a week or two and expects Melbourne arrival mid June but will advise me when it's on the ship.
He said at the moment - cars from Europe to Australia are 10 days to unload and get through quarantine and another 10 days to transport to dealers.
Interestingly, he was told by IA Aust. that all Grenadiers on the first boat (Don Carlos) are customer cars.
I have advice my car is in production, but not complete, so let's see how long that is from production line to on the boat and that will be a good guide for future holders.