It looks like, to me, to tension the lever 2 spring to pull the bottom of lever 2 forward when the trigger is pulled, it will have to be wrapped counter clockwise around the pivot pin, with it's long end resting ON TOP of the same pin as the lever 1 pin, not under (as in green). I can't see how this works, otherwise. The only way I can see to see to do this is to insert the long end of the un-tensioned spring over the post, then put the pivot pin through the spring and lever 2, then hook the short, hooked end of the spring and pull it over the back of lever 2, then slide in the spacer and push the pivot pin home. Seems like a fair change of damaging the spring, though. So what are you doing tomorrow?