Yeah, I think I'll go to Jo-Ann's tomorrow or Saturday and see about getting a sample of each. Of course, once I take photos of them, then we get into the "fun" area of lighting affecting the color!
Cal196, certainly anything is possible, but I haven't seen a flight suit that had the right color yet--but then, to be fair, it's been a while since I've been to the surplus store. I'll look the next time I'm in there, but I think the pre-pro suit is firmly in-between shades of flight suits I've seen, and I don't think they'd have the diagonal pattern to the weave.
I'll update with pics of samples once I get them.