The Protar's kit is of an acceptable quality, I didn't make extra details or improvement, just I added the motor wired. The modeler who wants to begin to build this model will have to sand the metallic body and the chassis parts thoroughly, then give them at least two layers of base and final color paint. After that, the whole body will have to be polished.
I glued all chassis metallic parts with CA gel type and at last, if when sanding the body the engraved rivet disappeared, new ones will have to be done. I drilled with 0,5mm and used copper nails as the ones used in naval models.