Custom 3D Circuit Board Enclosure

I need a custom-shaped 3D design for a plastic curved design enclosure to accommodate a circuit board. The design should include ventilation holes and mounting brackets for the circuit board. There will be a small round speaker in the centre of the enclousure top lead with small holes for the sound to come out..

Requirements:
- Custom shape design
- 3D modeling expertise
- Experience with plastic enclosures
- Incorporation of ventilation and mounting features

Ideal Skills:
- Proficiency in CAD software
- Experience in designing electronic enclosures
- Knowledge of thermal management principles

Please provide samples of similar work.