I'm going to return the favor Steve, and make this "clear as mud" for you,,,,,,,great topic by the way, I wouldn't have given it a though if you hadn't brought it up.
I have a color pic of -451 at Beaufort in 1979 of an early F-4J, no color on the doors, and no DECM on the intake shoulders,,,,,,,, and quite a few VF-161 F-4Js with colors on the doors in 1976
there is a color pic in the -451 section of Spirit in the Skies,,,,,,of another jet, but the right date,,,it's late F-4J BuNo 153776. AA-201,,,,,,in that pic, I can just see the color on the front of the open large nose gear door, and the small door, and the right main door have the tell tale "gray look" that means that it's not white (if you get my meaning)
so, I'd say you could go either way,,,,,,,but,,,,,,it's a show bird for a celebration,,,,tempting to say do it in red
this is one of those deals where you could slap a stack of photos down and say "It's Red",,,,,,,and the other guy could slap a stack down and say "It's White",,,,,lol
I need more Phantom photo books, lol,,,,,,,,and I need to start buying photos from the guys that sell prints,,,,,,,all the ones I and my uncle took are mostly B+W with a 110 or 126,,,,,and also most of the Phantom Photos are of -314
hope I was of some help
Rex