STL Modification for Detailed Jesus Relief

I need an STL file of a Jesus relief modified for a sign.

Requirements:
- Rescaling to fit specific dimensions
- Adding text or details for customization
- Repairing or improving quality for a smoother finish
- Enhancing design to be more detailed and intricate
- Adding facial and clothing details

Ideal skills and experience:
- Proficiency in 3D modeling software (e.g., Blender, Fusion 360)
- Experience with STL file modification
- Attention to detail for intricate designs
- Familiarity with religious artwork is a plus