Boiler died suddenly - chance to update HA compatible

In Australia. My combo gas boiler (hot water service/water panel heaters) “died” suddenly (leaking everywhere) and so need to act quickly. I’d like to use the opportunity to buy a “package” that is compatible with HA.
What is currently being quoted is an Immergas Intec Combi Boiler with a Honeywell 9000 Series WiFi Thermostat.
Is this thermostat supported (I did numerous searches using different terms but only found some non-committal comments that usually referred to other thermostats)?
Is there a better, more compatible thermostat that I could maybe swap out for the Honeywell that will work seamlessly with HA.
All input gratefully received