Congrats, I am sure it will look stunning. I am searching for a similar setup. Like you, I think there is something special about how Rosso Mars fits this car.

I have been around and sat in a car that has the LEDs in the engine bay. You can turn your head in the car and see them. I saw the car sitting outside so can't provide perspective on how well it lights the engine bay. But, given how much tighter the space seems to be in the H I don't believe it will be easy to notice. Silly that it is an option as it should just come standard.