CAD Model and Engineering Drawing for Composite Sill

I need a detailed CAD model for a composite sill, primarily for prototyping. This model will also be used to create cross-section drawings.

Requirements:
- Detailed internal structure
- Surface finish details
- Horizontal cross-section
- Isometric view

Ideal skills and experience:
- Proficiency in CAD software
- Experience with composite materials
- Strong understanding of engineering drawings
- Ability to create accurate cross-section views

Please provide samples of similar work.