My wall mounted split systems were <$1000 AUD each, 3.5kw. Found a sparkie and a fridgie to do the install, set us back around $3000 for two systems installed.
Great units, added some wifi dongles and tied them into my home-assistant for remote / out of home control & scheduling.
Probably the best addition to our home currently, don't know how we lived here using pedestal fans and gas heating.
Currently trying to find a screwdriver set that went missing after boxing up a bunch of old consoles. I don't remember putting it there, nor do I want to open and unpack everything again ๐