Engine Bay Paint Color.
Opinion???? Like said, make yourself happy!
Opinion? Personally I hate black cars, had them, never want another. I could never keep on clean, wash it, and 5 minutes later full of dust! But I have always lived in the dusty rural country.
Mopar drag cars (maybe like Sox and Martin, etc.) painted engine bays white, to see any leaks.
I have had 6-8 Purple E bodies, I was overdosed on them back in the 80s! I hate purple. Black car with purple engine bay, NUTS!
BUT... you wanted opinions!!!!
BUT...It is your car, your work and your $!