Congratulations on your new boat!
When I collected my new Cruiser 37 in 2014, it wasn't without problems. The main problem was that one of the main options hadn't been factory fitted, and this resulted in a lot of subsequent inconvenience, although Bavaria eventually sent a team of guys from Germany to the UK to sort things out.
So my advice would be firstly to check carefully that the specification is exactly what you ordered. Secondly, be aware that some dealers won't order particular Bavaria options, but will retrofit them when the boat arrives, as they make more profit that way. Unfortunately, retrofit installations are rarely as good as factory installations! So check carefully.
You'll naturally need to check that every single item works as it should. If it doesn't, the dealer must sort it out for you. Check all the mast lights carefully at night - these will have been wired up by the dealer, and there's scope for them to get it wrong (mine were wrong).
Take it on a sea-trial for at least a couple of hours, to get a feel for the boat. Do both motoring and sailing, and check for unexpected noises, etc.
Before setting off for Adelaide, make sure your fuel tank is full. The gauge may show full, but they're hopelessly inaccurate. My dealer told me they'd filled the tank, but they hadn't.
Have a good trip!