I guess my previous point about model years was really about the likely timing of the "exit point" offered - i.e. (guessing) 2 weeks or so prior to build?
For your/my situation, i.e. Mar/Apr 23 delivery in Aus, and accounting for, say, 10 weeks on the sea and 4-6 weeks laydown at either end, that would make a build date very much around the Dec 22/ Jan 23.
Is that around the time the new model year occurs?

