We solved the layout with a different look, trying to keep as much of the existing walls. At the entrance remained the large space of the library (like your plans) but the bathroom is now w.c. and the remaining space are closets & storage areas. The kitchen has a L shape and we have incorporated a separate storage room or laundry (if you like you can extend the kitchen).In the night zone we created two full bathrooms, one into the master suite with bathtub and the other with shower for use by children. Their room is large with study spaces and storage. The master suite has its own bathroom and dressing room. We don’t use all the terrace into the room as our layout of the room space is enough and we thought we should leave at least part of the terrace for installation of a / c as well as abroad Privet seating area. In the day area was preferred dining option with a sofa as show in the pictures due to the small space required. Alternatively proposed round table for dining. We apologize for the lack of furniture list, we do not know the shops in your country, but you can see the style from the photos. In your replacement ship 3d photos from the master suite.