Ion Thrusters again (sorry)

So about a month ago I posted that the Ion Thrusters aren't symetrical on their faces, well this is the same issue but the odd sections dont allow you to put blocks outside their perimeter either.

Here I have angled decoratives (red) and filled in the corners (blue) that fit inside a large block sized hole (yellow) next to the thruster tube. At the top are 2 spots you cannot place anything. There's definitely space inside this that I should be able to fit more decoratives.