Check out PREFABRICATED BUILDING 4 3D model on CGTrader for $39. High-quality mesh by kastaniga: 57000 polys, 88000 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 2.91 MB), 3DS (3D Studio, filesize: 721 KB), OTHER (Other, filesize: 651 KB), MAX (Autodesk 3ds Max, filesize: 1.38 MB), DWG (AutoCAD, filesize: 1.92 MB), FBX (Autodesk FBX, filesize: 1.73 MB)