Also, if you're using Fusion, here's how you can pull geometry from the surface of a scan, it's what I did a while ago for a Tesla project I was working on. I just needed the top surface of a steering column in a very clean way so you can simplify the geometry and just get a surface you can use...
Nice work. For even more detail get some Aesub scanning spray. It provides an optimum matte surface for structured light and evaporates away so no clean up.