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.

my u shaped kitchen fits within a space 5m x 2.9m .. the space between fridge and cooktop is for using the mixer and food processor, space between cooktop and sink is for standing slow cooker, toaster and air fryer and the kettle stands at the other end of the sink with plenty of benchspace all around for preparation areas ..the two corner floor cabinets are 1050 square with 45cm doors and easily fit all the already mentioned large appliances as well as coffee machine, icecream makers, slow cooker etc within easy reach and the pantry is used for food storage and has no sink or counters

My island is 3500mm x 950mm. With a 300mm overhang. I also do not have any stools at my island because our eight seater dining table is adjacent to island. I have my double sink with drainer, and plenty of bench space, because of bench length. So works for me. As oklouise has mentioned, measurements of your kitchen will dictate how big your island is. A 1200 deep island would require you to walk completely around it to clean, unless your 6 foot five. You have also said, in one of your initial posts, that you never eat at a dining table, so maybe you need a deeper bench. But, I would like to think that once you finally renovate your home, you will have family meals around an actual table.

Those storage options are perfection and the colour of that island stone is divine!!!!