Check out M4A3 75mm - Sherman - 50 3D model on CGTrader for $119. High-quality Polygon mesh mesh by Panaristi: 363588 polys, 284413 vertices. Textured, UV Mapped.
OBJ (OBJ, filesize: 72.6 MB), LWO (Lightwave, filesize: 36.3 MB), 3DS (3D Studio, filesize: 27.8 MB), FBX (Autodesk FBX, filesize: 62.2 MB), C4D (Cinema 4D, filesize: 62.8 MB)