Dear client, i´ve desinged the interior distribution of your future house following your request. The idea is to take avantage of the existing openings so the main rooms are natural lighted up. For ilumination and ventilation of bathrooms, i suggest add a 0.4 meter glass window at the upper side of the wall.
I hope you like it as i did designing it! i also added some visualization for you to see the living room and kitchen space with some interior design, and a 3D model. If you need more information, please let me know.