cool project even from a design point, but unless your constructing your chassis from a singular piece of carbon no joints or bonds it will be next to impossible to gain realistic stress simulations also finding out the material specifications of your grade of carbon and resins the technique to fuse them, i would of thought to gain the material specifications needed to calculate stress's will involve a fair few destruction tests with load measuring equipment. if you want once you have a CAD model knocked up i can test it in CFD software to find possible aerodynamic improvements in design.