Those two springs (at least in the picture) are not the same. One's ends are pointing in opposite direction of the other spring.
You are correct. There's a top spring and a bottom spring that are opposite "hand". I was referring to the "W" shaped one in Swami29's picture. I've never seen one of those before.
I agree with Jon's comment about welding and redrilling the holes for the springs. I needed to do that for both the hinge body and arm on one of my hinges.
