CAD Gearbox Design for RC Model

I need an expert in CAD design to create a single-speed gearbox for a 1:5 scale RC model.

Requirements:
- Design a single-speed gearbox
- Key dimensions:
- Input and output shaft dimensions
- Overall gearbox size
- Gear ratio requirements 35:1
- Components should be made of steel

Ideal Skills and Experience:
- Proficiency in CAD software
- Experience with gearbox design, especially for RC models
- Knowledge of material properties and manufacturing processes for steel components