3D Model Conversion to solid STEP for Injection Moulding

I have an existing STL (3D) of a patented plastic utensil that now needs to live in a fully editable solid SolidWorks environment for plastic injection. Your task is to convert the file into STEP and while... (Budget: $30 - $250 USD, Jobs: 3D CAD, 3D Design, 3D Modelling, 3D Printing, CAD/CAM, Mechanical Engineering, Reverse Engineering, Solidworks)