am assuming this is a concrete structure, when shifting service toilet to utility area, and if there are apartments above, then running extra lengths of supply/drainage lines & introducing a structural sink slab (if this is concrete) under the new location can be charged extra.. it will be easier to divide the 3rd toilet. all services will be already available. only, do check on supply & drain pipes capacity as load is increased on the same pipes which were serving one toilet earlier..

You don't have to give up your beloved pink. Pink, brown and grey are doable. I googled pink and grey living room and saw some great pictures. Maybe get a large carpet that pulls out the pink (must match the same shade of pink). Then place your beautiful little pink and cream Kashmir(?) carpet over it. Also pull that same pink into sofa pillows. And a similar pink and brown Tablecloth for the dining table will pull the colours together. Just need to make sure all the pinks are the same shade with small accents/border of the same brown and grey from the sofa. Solid colours or subtle designs will be easier to coordinate than bold dramatic prints. These 2 are not the right shade of pink but you get the idea, I hope. Carpets with tone on tone pattern. A dusty rose on one wall would be nice too.

Photos and a floor plan showing window/door openings would be helpful.

Susan, I find that people often make their coffee tables too low and too small. Measure the height of your sofa cushion and pick a coffee table that is a similar height. Also, in the layout you posted above the room would look better with a larger coffee table. Even as long as your sofa, or close to it. Let me know if you need one custom built, it easier to get the right thing for your room than you may think. Here is my etsy store if you end up needing one custom built. www.etsy.com/shop/MetalTreeFurniture