Welcome to Librarium Online!
So I don't want to do a regular army of grey knights and imperial storm troopers. The GKs in gray are just the same as any other army.
So would black, red, and silver be an okay colourscheme. Silver covering most signs and such and the helmet of the sm, while red would cover the shoulder pads and legs. While black remains all around the torso.
Others would obviously recongnize them as grey knights cause all of the silver and the handweapons on there backs.
So also, how do you usually paint your imperial storm troopers and what do you use as an inquisitor lord?
I'm painting my termies in the old style GK colouring which is black/dark blue-grey with all the other bits and gubbins done in red and gold. Mostly just to keep them looking a bit different and to give me something different to paint.
less hate more kittens
I decided to do my termies in Black with gold on the lettering and red on the gun, some of the NFW and the badges. The first one looks pretty cool. Especially once I drybrushed it in boltgun.