ok new idea is if i get them to remove a part of that wall where the arrow is pointing and put shelves and a tinted glass door there for all the units amps etc. and the living side of that wall and lcd is going there so all the cables can go in that space as well.

then all the cables can go right into the roof out of sight no plates on the wall at all. and run the conduit into the roof part of that cuboard and wont be able to see it.