I love the claw foot bath but if i was ever lucky enough to put one in I would make sure it was in a wet room, the idea of cleaning under it makes me shudder

This was the link which shows above in the dilemma but it has changes you will need to scroll through the bath styles and check the info attached to it, lets know how you get on cheers https://www.caroma.com.au/bathrooms/baths/vibe/vibe-1700-island-bath

I think you have answered your own question in your comments. Unless for some Australian standard you need the overflow, I would just install the standard plug.

Is this your only bathroom? if so consider carefully before you ditch the bath. Families with v;ery young children need a bath and personally for me having a bath is a must, especially on a cold night or after a long day at work. Baths are also still considered luxury items, top hotels always have a bath in their bathrooms. Perhaps you could combine the bath and shower, remember that bath / shower combinations are not always tacky and come in many other shapes, sizes and options now - a semi or completely sunken bath with shower can look stunning, spacious and you can still retain the bath! Houzz already has a great article on sunken baths and you can see in most images they are combined with a shower https://www.houzz.com.au/magazine/sunken-baths-for-every-bathroom-even-small-ones-stsetivw-vs~119731864