There’s a pretty high quality view of the X-Wing pilot suit here in this 1977 printing of the novelisation. Both front and back.
There must’ve been more efficant ways to find a reference for the costume. Maybe the toys, but I know how hard they were to get right after the film had come out.
I’m really leaning towards a lie for this one, it seems like a waste of time to sit through a 2 hour movie to take notes during the last 20 minutes. I mean it was the 70s though, maybe she just really liked sitting through it.