Since it wasn't available in game, I decided to do it myself. Cleaned up the lothric armor set, not only with the clothy bits like the NPCs have, but also removed most of the rust from the armor itself. Gloves and Helmet are untouched, as they did not really need it, honestly. Tabard and Cape were cleaned up following the template of the existing textures (but not cut/pasted, those textures were too low res). Most of the rust was removed, color of the rust layer was changed so any that remained now looks more like a scuff in the armor than rust.

Requires iGP11 by S17L.

Just place the textures into the tex_override folder created by the tool.

Mini-update: Red, Green, and Blue textures have been brightened a bit to more closely match the NPC counterparts, They don't look
drastically different from the version shown in the screenshots so i didn't upload any of the updated ones, but now they will no longer seem
too dark in certain lighting situations.