have a separate sun room that runs the length of the back of the house. the windiws of the sun room are ceiling to floor - but have a commercial look. the wall separating the living room has windows and a french door as well as an narrow electric fireplace - would like to eliminate the interior wall and make these rooms into one- need indeas on flooring would consider concrete, and how to make exterior windows less commercial. also, would consider elinimating fireplace - not very attractive and scale is too small