If I were to need hammer, trigger, bolt, hand.spring, main spring and trigger spring I might just spring for a parts kit. But at $40, it's a little pricey for just a broken hand spring.
My first attempt with teh bobby pin was half a$$3& at best. 2nd try worked just fine. Problem was getting the notch opened up to get the broke piece out then staked back down to hold the bobby pin tight. Needed 3 hands to do it.