I have a fiberglass copy taken from a hero that I could send you some pictures or measurements, although I suspect it may be too late for that.
Yours is beautiful!
Hey Funky, we are finishing the full scale Starfighter build. I need to take a look at that Starfighter helmet you have. We will be needing a few copies for people to wear when they climb into the cockpit. message me.
TXARMORY in Fort Worth, TX