3D STL Cleanup for Sculptures

I need high-resolution STL files of clay
sculptures cleaned up from 3D scans for printing in wax and casting in bronze

Requirements:
- Fix surface imperfections
Copy original tool marks
- Address non-manifold geometry
- Keep and enhance details for print readiness


Ideal Skills & Experience:
Proficient with z brush or other sculpting software
- Proficiency with 3D modeling software
- Experience in repairing and optimizing STL files
- Attention to detail and artistic sensibility