Hi, just thought I'd let you know as you might be interested as you mentioned compatibility, in the Australia & New Zealand mod's next update (which should be soon™) we've made some more changes to Pacific and Indian ocean islands. We do this generally to to add flavour for the region of our main scope countries, so take with a grain of salt whether you'd also want these changes.
We're adding Rapa Nui and Samoa as decentralised tags, renaming Kanak and Vanuatu to New Caledonia and New Hebrides respectively, the Indian Ocean Territories (which we might've already altered from vanilla) is splitting Christmas island and the Cocos (Keeling) islands off to their own state in Indonesia, Tahiti's capital province is moved to Tahiti (crazy) and they start independent. In general we are moving toward having most islands with ~100k+ population be represented/releaseable, or if they serve some other narrative feature (i.e. the Indian Ocean Territory split).
We've also adjusted the resources of Australia and New Zealand to be more accurate and the Murray River map placement has also been made more accurate.