I was watching one of those HGTV shows, where they were covering a brick wall with drywall.

The drywall was framed off the brick with 2x4's, laid 'sideways.' The wiring method was NM (Romex).

Think about that for a second. I saw two challenges to this wall.

The first is that code required the cable to be 1-1/4" behind the wall face, or to be covered by some stout metal. Even mounting the cable to the bricks you're hard pressed to maintain that spacing.

Challenge #2 was getting the cable into the boxes. Heck, getting the boxes into the bricks is a challenge itself - but where is there room for your wire to enter?

How would you do this job? Would you insist on a deeper wall cavity?