I was on a search for a new kettle. which I wanted to be with temperature control and without any plastic parts where it comes in contact with water.
It could be a little tricky to find an electric kettle like that, as the internal top of the lid and level indicators are often plastic. It is a little hard to tell from the photos, but the internal part of the lid does look stainless to me. It looks like a decent quality one to me overall, I was not able to find anything of better value.
This one was $99 in the morning, but they have just reduced it to match Harvey Norman and other stores.
Update 2025/03/20: I have recieved the kettle today. Overall, I am very happy with it. It is quiet, quick to boil water, stainless steel everywhere apart from a little tongue that holds the lid in closed position which is plastic, but it is only a 5mm little tongue. The only little downside is how the lid operates, it is awkward to open it as one needs to press the button on the top down, which presses the lid in preventing it to open. Also, it only opens half way initially and you need to then pull it up.
Also available for $74 + Delivery ($0 C&C) @ The Good Guys via Price Check Button.