Hello
Attached is a little sketch, and I'm wondering what it would cost if someone else did it. I was going to do it myself, but it just never happens.
The walls are gypsum and steel studs. I want to change them to be built with wooden studs. I also want to reinforce behind the TV so that there's a sturdy stud to attach the wall mount to.
It's not a super detailed sketch, but at least it gives an idea of how I want to do it.