This is the Low Poly Asset with a high resolution textures (2048x2048). I could upload even higher (4k), but those textures are enormous. The Stall look decent even with a 512x512 resolution. I use PBR workflow, which is in my opinion the best, and the sets of textures include base color, roughness, metallic, normal and hight maps. You don't need to include all of those maps, but if you want the best result including all is the way to go.