We have been a supplier of OSMO Hardwax Oils for a while now and have found that they have been great in all applications. They have an Oil specifically designed for Kitchen benchtops. OSMO Top Oil which is foodsafe and contains linseed, carnauba wax, candelilla wax, sunflower oil, soybean oil & thistle oil. You can buy it from VCS Products in Perth or Natural Timber Oils in Melbourne.

Not an Australian product, but definitely a lovely alternative to the indonesian woods. Worth a look, http://www.hardwood.com.au/media/roasted-decking/roasted-decking-brochure.pdf

Most timber stains will look good but I would go for a mid brown stain. Look at kitchen photos here on house - search white kitchen with timber floors. I just checked myself - when you enter white kitchen and timber floor- the majority of photos have medium tone (35000 images ) and only 15000 images or for dark timber and even less for light tone timber.

I like the blue touches already in the room, which reflect the brickwork. Agree with lots of creams/ neutrals, just adding some blue in cushions, artwork. Maybe a bluish/cream rug, with a subtle pattern, not a solid color. Also I think the lights are a little lost. The high ceilings could take some quite large shades, maybe drums. And I agree that the central column could be painted to become the focal point as stated. Either white or quite a dark grey/ blue, ( it might darken up things too much, but it's only paint, can be changed). It might be sinful but I think I would replace it with plaster, then paint it. Finally maybe a dash of 60s burnt orange or mustard if you want to want to keep the retro theme.