develop final production design of a Notebook/Laptop computer range from a basic design

I'm looking for an industrial designer/mechanical engineer to refine a rough laptop/notebook computer design and expanded to a range of 3 notebooks of different sizes. Ideally we are looking for someone with laptop /consumer electronics design experience. Below is a summary of the tasks ( this is not a full list as new design elements may appear ) - Redesign existing model & create 2 larger models - refine the designs of the cooling system - refine and design screen opening mechanism - develop air intake methodology in the laptop base - run thermal dynamic simulation - modify or make any changes that are required based on manufactures responses until product goes to production. We are a startup in it's infancy and are at the costing an marketing testing stage of the project, As such we are looking for a design partner who is open to a small fee on completion of the designs and should the costing and marketing test prove successful an ongoing royalty payment for units sold( our estimates are approx up to $15,000 USD over 3 years to be confirmed after costing) and the first chance to quote on design of future generations of the product. to be successful in you will need to have a portfolio of product available for review prior to being selected. If you are successful you will be required to sign an non-disclosure agreement All bid outside the the price range will be discarded, please ensure you post a realistic time frame and have the skills required to complete the project.