High-Detail Model Conversion for 3D Printing

I need high-detail solid models created from mesh scans that i already have, specifically for 3D printing. The final models should be in STEP format.

Requirements:
- Convert mesh scans to solid models
- High-detail fidelity
- Export in STEP format

Ideal Skills:
- Proficiency in CAD software
- Experience with mesh to solid conversion
- Attention to detail and precision

Looking forward to your bids!