You will have to probably redo the shelves completely. Looking at how they are built you cannot just remove the middle to put the TV in. You may be able to put some support under the shelf that will be just above the TV....just consider this. I would paint the inside of the shelves a fun color- cobalt blue or burnt orange maybe. This will give you a great backdrop for your things and keep the TV from becoming a black box on the wall. It's a great space!

Do you need a "floor" (as in marble, tile, wood, cork, etc) or do you need "floor plans"? Your post is a bit confusing. Has the building been built? Is this an appartment? And what is a "step"? Are you discussing "stairs" or are you describing how many "steps" it takes for you to walk from one wall to another?

Final working drawings shall be issued by the architect which includes the details (only structure related details) given by the structure engineer. Final working drawings include around 15-20% of structural details, remaining 75-80% includes mechanical, electrical & plumbing (MEP) detail, HVAC details, flooring details, wall finish details, details of architectural elements, and so on, depending on the scale and complexity of the project. An Ideal Working drawing issued by the architect includes every single technical detail, which a contractor/site engineer on site will require to construct the building, even if the architect is not physically present on site. I hope this was helpful.

I've seen a lot of photos and I have come to realise that I really like the pastel/muted color pallete and have also come to know that they are good for small rooms. I really liked nickel grey and silver grey. Do both of these colors also belong to pastel color pallete? I am not able to find a separate section for pastel color pallete on asian paints' website. So it's difficult to find similar colors. Thanks for helping me.