Pipelay Crane Vessel SK 3000 (Polygon mesh 3D model) is available on CGTrader for $120. Original author: Cartoonman7388. Specs: 528394 polys, 526245 verts.
OBJ (OBJ, filesize: 116 MB), MA (Autodesk Maya, filesize: 150 MB), MAX (Autodesk 3ds Max, filesize: 95.7 MB), FBX (Autodesk FBX, filesize: 43.1 MB)