If you want use other gunsights (e.g. Ceanos beautiful ones) you only have to copy the graphics directory from the unpacked files into the patch_hd_unpack directory of the mod you are using and then repack it.
I've… seen things you people wouldn't believe… Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tannhäuser Gate. All those… moments… will be lost in time, like tears… in… rain.