Little shelving unite inside a wall + more

Hello, I have a couple of tasks I would need help with.

1. I live in a small flat in London, and I have a silly idea and want to see if it’s possible.

My concept involves a small wall bar with a door that opens to reveal a couple of shelves inside. I’ve seen many similar examples on Etsy, but my twist on the idea is to have the bar encased within the drywall itself, rather than protruding from the wall. Essentially, I’m looking for a built-in solution that blends seamlessly with the wall, providing both functionality and a space-saving design. Then I can actually hang a nice print on the door, or find a nice wood for it.

Would you be able to assist with this project? I look forward to hearing your thoughts and any suggestions you might have.

2. I’d like to hang a TV on the wall. However, I want to make sure the dry wall can hold it, and also make sure that the I don’t hit any electrical behind it (there is the flat electrical unit right behind the wall in the storage unit).

Thank you very much!
Flavio Vincenti