Mechanical Design of small wheeled robot

We are a robotics company who have a special requirement for a small tracked robot. We need someone to complete teh mechanical design for this project. Specifically; 1. Take the sketches we have and to then source components for the build; tracks, motors, drive system, suspension, attachments. 2. Complete the concept design in AutoCAD Inventor 3. Complete the detailed component drawings for the design This will be an iterative process that will completed on hourly rates in stages. Stage one is to complete the basic design based on sourced components. We estimate this will take 40 hours. Stage two is to complete the Autocad Inventor concept - we estimate 40 hours. Stage 3 is to complete the detailed manufacturing drawings - 40 hours. NOTE 1: This project MUST be completed in AUTOCAD INVENTOR - nothing else. Note 2: to be considered for this work, you must have a portfolio that shows detailed mechanical design in AutoCAD Inventor and PHOTOS of the finished products using small mechanical components. If you have no PHOTOS in your portfolio, you will not be considered.