3D/CAD for Game Controller Cage Accessory

I need an accurate 3D model of the said product made for the purpose of 3D printing. The final product will be used on DualShock 4 controllers and thus need to be precise. I have attached with this brief a commercial 3D model of a DualShock 4 controller which is accurate. Please use the attached model as a reference. Concept Drawings [images will be provided to shortlisted freelancer] Figure 1: The cage design is of a biological theme. The ribs wrap around the right handle of the controller and provide an improved grip and aesthetic. The cage will be made of metallic plastic, steel or brass, and can be fitted easily to the controller. Additional Images [images will be provided to shortlisted freelancer] The following are pictures of the rough design painted on to a cut out silicone skin. Please use this and the above illustration as your reference. Specs [image will be provided to shortlisted freelancer] The ribs should be 3mm wide and 2mm thick. File Format Please provide final model in STL and OBJ formats. Preview Renders Please create high-quality final renders using the provided black DualShock 4 controller. This will help me to visualize how the final product will look. Materials: brass, steel, aluminum and Alumide (aka metallic plastic). Angles: all angles as shown in reference images, un-cropped and showing the entire controller.