Example below: The wires need to run up behind the wall to the ceiling (see image below). A return was created between two existing walls (you will need to create two columns) - through which you can run the wires if necessary. The screen is hidden in the beam above the painting. In the foreground of the photo is another "beam" which actually contains the projector. It has an access panel again covered in the mesh and there is a flap that can be removed or opened/closed when the projector is in use. US is way more advanced, so I believe other Houzzers can step in...

8.75 would be fine to it's only a difference of 3 inches.. Are you going to do up lighting? In the second picture that ceiling is really set up for it and that opens up a lot of options on your finishes and textures on the ceiling.

Hello Rukhsar, The base cabinet is anywhere between 28-34 inches depending on the height of the homeowners. From thereon the bottom of the wall cabinets start with a gap of 18-24 inches. The wall cabinets are usually not made until ceiling in indian kitchens. They are of 24-30 inches height. However, taking cues from the western designs some people prefer making the wall cabinets upto ceiling. You should take the call based on your storage requirements. Another option that is common in indian kitchens is a loft after the wall cabinets. It looks clumsy though. Thanks, Nitin Cornerstone Designs Bangalore.

Ok Monika, for the beam running in the middle of the room you can clad it to make it a part of the design but it needs to be planned properly. You may need professional help there. These attached suggestions should hide the beam. If you do not get the theme in the pics please feel free to call us to understand the suggestion. Thanks, Nitin Cornerstone Designs, Bangalore.