A very warm welcome to the Bunnings Workshop community. We're really pleased to have you join us and are looking forward to seeing how you can transform your bathroom.
Thanks for sharing the photos and dimensions. In order for members to get a better idea of what you are working with, are you able to also share a floorplan of the bathroom? Just a basic sketch would be fine. I'm sure it would really help amazing members like @Mathy and @redracer01 to see what you are working with and suggest their ideal configuration.
Please let me know if you ever need assistance getting the most from the site. We're here to help.