4x4 GVM Upgrade Modification Plate

I'm looking for a auto engineer for certification/modification plate for a GVM upgrade on my 4x4 vehicle. This is specifically for a suspension system upgrade. I need you to confirm the parts that I intend to use are suitable and then certify it once the suspension has been installed

Ideal Skills and Experience:
- Experience with 4x4 vehicles and suspension systems
- Knowledge of GVM regulations

Please provide examples of previous work and relevant qualifications.