Dear client please find two versions of organization including all the features you have requested.
On the first version the bathroom positioning is in the same space that you already have, which minimizes execution costs and gives the rest of the space more natural light (opened down to the floor). Each other function have enough room that is well saturated to each other, prompting each one individually. Please find the visuals of the interior, on the upload section.
While the second version, tends to have natural lighting and natural ventilation for the bathrooms, placing the bathrooms adjacent to the openings you already have. The other functions than are puzzled in to make the space interactive and yet spacious.