You probably only need a recoil spring. I would only change the springs. The extractor is fine if it was ever any good, and still ejects the empties. The firing pin is either good, bent, or broken; if it looks okay, there is no need to replace it. You do not need any tools to adjust an extractor, your thumb will do the job. The 1911 is designed to be fully disassembled with only two punches.