Convert STL to STP – CAD Modeling from 3D Scan

I need a clean, solid .STP file from a 3D scan of an Alpine hat in .STL format. The STL has small holes and surface imperfections that need fixing. The final STP should be usable for CNC or technical production, not just a mesh conversion.

Requirements:
- Fix small holes and surface imperfections
- Create a solid .STP file with continuous surfaces
- Ensure file is CAD-ready for CNC or technical production

Ideal Skills and Experience:
- Proficiency in CAD software (AutoCAD, SolidWorks, Fusion 360)
- Experience with 3D model reconstruction
- Attention to detail and precision in technical modeling

Please review the attached STL file before bidding.