Floor plan: Kitchen, dining, living on view side,games & bed 4 to be one large 'games' area, main bed placement. Adjust minor bedrooms to be 'mirror' images and share bathroom. Insert laundry between Laundry & bedroom?
if the ceiling has to be lower in spots, The heated square footage doesnt count if under a certain height. See about utilizing those space for storage, bookcases etc.to make the space attractive and purposeful