I guess you found your own answer. Anyway the thing is I like to see how they made these special effects back then because it is an art that is fading away unfortunately. Many of the props (SW or not) are not as cool as you see them on screen. Idealizing them would kill exactly what they really are, a movie prop, and that is because if SW was real, no way they would have used plastic armors, maybe kevlar or something bullet proof, the same with some of the plastic guns used on many movies.
Since they were on budget the film producers made them the way they could back then. And they still are light years ahead of the new CGI, because with all their roughness, there is a lot of heart and soul put in them, and not just a computer program. And personally I pay my respect to these true artist by collecting accurate props. This way I have the entire experience of the movie and I still realize how good the movie is with hand made props.