You need to be familiar with the locking mechanism.
You need to be familiar with the locking mechanism. Since this may be the biggest cost in this process, it makes sense to do this work yourself. However, if your time is invaluable, or if you don't understand the background of potentially complex and subtle issues and solutions, DIY may not be right for you. If you don't fully understand what you're doing, you may further damage the lock, so be sure to take the time to process each step in the process.