Create a detailed 3D vector drawing from a very simple, amateurish sketch.

As a start-up, I am looking for someone who can create a detailed 3D drawing from a sketch for me. I am very bad at drawing, so be warned! The project must be treated as 100% confidential, so an agreement is absolutely necessary and binding. It is not very complex, and I will also provide a clear description of the product. I may have something else for you after this project.