is the mesh gona move ? I suggest watching Avrid Scheneider's channel. Full of useful Arnold tips and tutorials. Might help you. https://www.youtube.com/channel/UC1KDwEVBlxr4ew7xqLOhu9g my 2 cents Procedural is great for giving variations, good for texturing and shading large amount of assets without having to spend lots…
You could also make procedural materials in Substance Designer, and assign them in Maya, assuming you can mix Substance into your Arnold materials. We do this a lot where I work, except with 3ds Max and V-Ray, but the same basic concept. Mostly we can get away with procedural mix masks, requiring few hand-painted details.…