CAD and Stability Cert for Cold Chamber

I need a CAD drawing and structural stability certificate for a new cold chamber to be built.

Requirements:
- The chamber will be constructed using insulated sandwich panels with a steel frame.
- Ideal candidates should have experience in structural engineering and proficiency in CAD software.
- Knowledge of cold chamber specifications and requirements is a plus.
- Puff panel 100 MM. panel internal construction should be SS 304. Panels should be able to withstand the wind velocity of 200 KMPH and 160000 M3/h volume of air.
-Structural stability certificate to be provided.

Please ensure the CAD drawing is accurate and the stability certificate meets all necessary regulations.