>>11472407
Gunmetal would have been ideal, but I build with what I have, and I don't have any. Maybe after I actually build it in full I can see if I can bricklink gunmetal replacements for the outer shell plates/slopes.
Also, if I do it in dark bley, I can make a Pegasus gate to the same design in light bley (or order silver pieces). I found the perfect piece to use for the digital symbols on that too.