The small tug boat is modeled to size. It's parts are named for ease of orientation and the Tug itself is grouped for ease of import. 

The model is entirely unwrapped. The unwrap PNG files are supplied with in a ZIP file, ready to be used to paint over in your texture app of choice. 

It is modeled in Blender 2.79 and the wire frames were rendered in Cycles. All the Wire textures are already assigned and can simply be painted over.