T34 76 Tank (Subdivision ready 3D model) is available on CGTrader for $89. Original author: dragosburian. Specs: 690745 polys, 673719 verts.
STL (Stereolithography, filesize: 22.5 MB), OBJ (OBJ, filesize: 30.5 MB), FBX (Autodesk FBX, filesize: 66.4 MB), BLEND (Blender, filesize: 10 MB), DAE (Collada, filesize: 18.3 MB)