So for more detail, both existing bathrooms are fully tiled with the normal fittings. Bathroom 1 has a single shower and bath with double basin. Bathroom 2 has a double shower and basin. Very little size difference between the 2.
Idea is to strip both back to bare walls and redo.
Bathroom 1 to retain single shower, existing free standing bath to be built in, double basin and toilet replaced with a geberit in wall unit.
Bathroom 2 to retain double shower, have a free standing bath added, single basin and in wall geberit toilet.
Showers would be frameless.
Both bathrooms tiled from floor to ceiling.