I need a layout for a massage clinic.

Hi everyone, I need to work out what could be a layout for a massage clinic with 3 decent size treatment rooms and reception area using the floor plan attached. Toilet has to stay where it currently is, and the door next to it is fire exit door so needs to stay clear of obstructions. The door on the other side is the main entrance. The small kitchen cupboard attached to the toilet will need to be removed and toilet made smaller - possibly 1x2m? If that is enough for the toilet? The walls will need to be proper sound proof acoustic walls so not sure how wide they will be but please consider this when making dimensions. And also we would need to add some kind of a small kitchen unit/sink for hand washing, microwave? Has to stay close to the toilet as it's where the plumbing currently is. Can someone help please creating a layout that would maximize the room spaces and make the whole clinic feel spacious? Thank you.