if that's your bedroom, to clean things up do what I did, make a fake wall and put the tank behind the wall and frame it, then it looks like a flush picture. add a few feet behind the tank so you can walk in with a small door on the side.
since your already building the tank stand with lumber, just move it 2 feet from wall, that gives you your access behind. I did that with 3 tanks, then gutted the whole thing and rebuilt the wall and put 150gal in. i'd do bigger but that's all I could fit down my stairs, lol.
just a thought, since your building from scratch anyway. look forward to seeing the finished product, always looking for new DIY ideas.