HS 8300 mining dragline 3D model is available on CGTrader for $149. Original author: markos3d. Specs: 8120039 polys, 4156504 verts.
STL (Stereolithography, filesize: 80 MB), OBJ (OBJ, filesize: 70.1 MB), 3DS (3D Studio, filesize: 28.1 MB), OTHER (Other, filesize: 778 MB), BLEND (Blender, filesize: 140 MB), C4D (Cinema 4D, filesize: 31 MB), MAX (Autodesk 3ds Max, filesize: 52.2 MB), LWO (Lightwave, filesize: 88.9 MB), FBX (Autodesk FBX, filesize: 306 MB), MA (Autodesk Maya, filesize: 51.3 MB), HRC (Autodesk Softimage, filesize: 109 MB)