Please merge if the topic already exists. I have not been able to master the search feature here.

I just picked up a loose Luke Stormtrooper. It is the last Vinatge figure I need (not including Vinyl Jawa and the DT's.) Anyway, I'm in need of expert assistance to make sure I got the original helmet and weapon.
First, the helmet. I'm reasonably confident it's real, but never having even held one I new to be %100 complete, I just wanted to make sure. I'm confident it's real because it has slight pait wear and dirt/discolorization seems to have invaded the seams (slightly.) The helmet is also hard, which I wasn't expecting. I kind of thought it might be like Boushh's helmet. Any thoughts or test that I can do? Things I should check to test it's authentisity?
Now the Blaster. I am well aware that Luke's has a unique color tint. However, after comparing his blaster to the many I have, there seems to be several tint variations. Can anyone give me a dead bang comparisson? At first I thought it was the right one, now I'm not so sure.

Thanks in advance for your help.