Telescopic Boom Lift (Polygon mesh 3D model) is available on CGTrader for $150. Original author: rgbAlpha1. Specs: 530948 polys, 519113 verts.
MA (Autodesk Maya, filesize: 266 MB), OBJ (OBJ, filesize: 119 MB), FBX (Autodesk FBX, filesize: 29.4 MB), MA (Autodesk Maya, filesize: 266 MB), PNG (PNG, filesize: 175 MB), EXR (EXR, filesize: 5.23 MB)