For years I've said the manufacturers should eliminate the bathroom sink and cabinet.
If they did that, and moved the toilet to the outside wall/rear corner and had it in the corner at an angle it would make the bathroom much larger.
Then if they put some water proof cabinets overhead off the ceiling there would be plenty of dry storage.
If it is a wet bath have the showerhead facing the toilet to keep water away from the door. Run the plumbing through the overhead cabinets.
Having a larger bathroom and the added floor space would also give you an out of the way spot to store some larger items, or items that tend to be dirty or wet.
But hey what do I know.......