I agree, tweak an aluminum chassis and they're done. Although when testing alloy versus graphite back to back on carpet, i find the car is so much easier to drive with aluminum with the same settings allowing me to push the car harder without any traction rolls.
Thicker graphite may work but it dramatically changes roll centers right off the bat. That is why aluminum is ideal cause they mimic the same thickness of their graphite counterpart with reduced flex and can maintain the original roll centers.