If you swap the Kitchen & Study over with the Dining & have Bed 3 beside Garage it could be do-able. Would be approximately 7150 mm long for Living/Dining. All the plumbing is then on that side & may have room for laundry too.

Also you need what you use all the time at eye level you seem to have every day items on the bottom shelf. The middle two would be so much easier. I also feel it could be time for a big clean out. Empty everything from all shelves, I know its very time consuming but the only way to do it. Allow a whole day. Go through everything individually, put like items together. Keep baking items together, sauces, gravies etc. together, cereals together, snacks together. Work out if you need to buy some baskets or plastic containers for loose items that should go together. Once you start you will be on a roll. When finished you will wonder why you didn't do this before. Dont forget the timber steps, I think you can buy plastic ones also. I have also seen expanding racks that do the same. But I have found them to be a bit over priced. Don't forget to treat yourself after the good job you have done. Good luck

Where is your line of sight? Is the dining and living looking in there? If the nib wall there isn't enough to visually hide the mess I'd be surprised. I personally think open to the butler pantry is better because you'll be carrying all manner of things back and forth and wrangling a door all the time would give me the poos. If the dishwasher is in there, given there's walls with insulation between it and your great room would dampen the sound. I vote for no door!

I took into consideration your new Fridge pantry alcove when I designed your kitchen to get you the max island and still being well placed within the kitchen. If the island isn't attached to the fridge wall you would need to leave a 1m space between them which would reduce the 3m Island as I have shown, the dotted wall shows the length of your kitchen, and how the island fits into that space, you could extend the island further into the dining if you wanted, I can redraw that for you. As I said with both of your plans drawn differently Both OKL and myself had a differnt result