This was a few hour long project created in Substance Designer and rendered in Marmoset Toolbag. I used phototextures for imperfections and tiling micro-details, otherwise everything else was authored in Designer.
I was inspired by Dishonored for this project.
The textures are 2k and in PBR Metal/Rough, but can easily be converted to PBR Spec/Gloss or Non-PBR Spec/Gloss.