Shipping Port Gantry Crane Low-poly (Polygon mesh 3D model) is available on CGTrader for $35. Original author: gooseman. Specs: 9000 polys, 10000 verts.
OBJ (OBJ, filesize: 1.97 MB), TEXTURES (Textures, filesize: 563 MB), FBX (Autodesk FBX, filesize: 2.35 MB), MAX (Autodesk 3ds Max, filesize: 2.5 MB)