Before buying a model, you can try to download one of my free models and testing.
No cleaning up necessary. Model is built to real-world scale.40, in separate RAR-archives with textures Autodesk FBX fbx without materials, in separate RAR-archive, works with almost all Autodesk 3D applications, if you are not using Native application, OBJ obj without materials, in separate RAR-archive, works with most 3D applications, if you are not using Native application , 3D Sudio 3DS without materials, works with most 3D applications, if you are not using Native application, Material Libraries Vray in separate RAR-archive mat , textures in separate RAR-archive JPEG .