Sorry your dates are incorrect, the Interdom Grand Final is on Sat 10 Dec 2022 (Melton) with qualifying heats as follows:
Sat 26 Nov 2022 (Ballarat)
Tues 29 Nov 2022 (Shepparton)
Sat 3 Dec 2022 (Geelong)
Although your point about NZ horses coming to race here makes perfect sense.
However, this has also been the case for the last few years

And it is all very well framing a market, but the conditions of the racing have not yet been published ......