Australian overwhelmed by options for ebike

First up, I'll just say the budget and requirements;

Budget: Soft limit 1600 USD (roughly 2500 AUD) Hard limit of 1900 USD (3000 AUD) if its amazing for its price, prefer

Requirements: Must be capable of commute around about 10 miles a day (~16 km?) some of which is up a decently steep hill. Max legal wattage is 500, and cannot come standard with a throttle

That out of the way, I dont really have many other needs or wants for a bike, outside of it being available in Australia. I don't mind if its step through or the other one, nor if its foldable, or a cargo style bike, so long as it rides comfy. I'll not be taking it onto dirt except for a few shortcuts here and there.

There are just simply too many options around, and I've too little knowledge about the bikes and no trust in salesman to have my best interest in mind.