Many thanks dear bullzi for your prompt answers and valuable suggestions.
I am now drawing the plan in a vector based software, and doing the set up design. I will post it up after finishing it. Please give your insight and other details on that kindly. And yes I have googled and found many information, based on that I will DIY my TANK, SUMP,ATS.
I could not increase the sump size because of available tricky space. Other wise I have to place Sump and ATS on some further away space connected by PVC Pipes, may be on the 1st floor roof under a shade. Than there would be temperature problem. Therefore at first I am going to building two ATS , each 10" X 12" with both side LED lighting in the sump(10" X 12 " X 2 x 2 lighted sides = 480 square inches ) By the way I am going to place the Tank in the maze nine floor.