Guest Room = Study / Library & its bath = powder bath w/ larger Study storage closet. Open Kid's Nook, Laundry, Safe Room into 1 large Utility Room. Keep Bath, but w/ hall access. Bedrooms could be smaller w/ Jack & Jill Bathroom.
Mstr bdrm trayed ceiling & 2 walk-in closets (make into one). Great room with vaulted ceiling, fireplace flanked with built-in shelves. Laundry room, kitchen pantry, two covered porches (make kitchen and dinning space bigger)