I'm gonna guess that the builders of the wall know. Like they don't know how to break into their own wall.So from a mechanical standpoint, I'm trying to determine what the dimension of each one of those (I suppose) angle beams are.
4x4 inches? 6x6" ? OK, how thick is it, 1/8", 3/16", 1/4" or even thicker?
A guess would be 1/4". If it's 6"x6" @ 1/4" thick and you have to cut what 2-3 slats top and bottom, some Mexican has his work cut out for him. It could be done with batteries, but man, it's going to take more than a few and quite a bit of time.
Two slats is 4' and 3, both sides is 6 feet of 1/4" plate. How long would that take?