Awesome car!
I know you have done your homework, (and then some), but for others, anodize the wheel spinners, blue right, red left, to compliment those great wheels!
It is very interesting to me that the brake cooling ducts on some of the cars came out from the radiator tunnel, behind the radiator, so as to warm the air that would cool the brakes. This was because the Mulsanne straight would require braking so hard as to make the rotors glow, and fracture the rotors from the temperature differential if the cooling air was too cold. Who would think of using warm air to cool the brakes?
Enjoy your build of this great car!