Reverse Trolling Motor Propeller CAD Design

I'm looking for a detailed CAD file for a reverse propeller specifically designed for a trolling motor. The design is to be created from scratch.

Essential details I can provide:
- Diameter and pitch
- Blade shape and count
- Material type

Ideal skills and experience:
- Proficiency in CAD software (please specify your preferred formats, e.g., STEP, IGES, DXF)
- Experience in propeller design, particularly for marine applications
- Strong understanding of hydrodynamics and materials used in marine environments

Please include examples of similar work in your bid.