How easy to replace brake lines?

I second Old Turkey, in case you don't know what the wrench's look like, http://www.sears.com/tekton-6-pc-flare-n..., they are real important tools to get your old lines removed and not that much money, replacing your old lines is straight forward if you buy pre-bent lines, remove 1 at a time and match it with a new one to replace it with, good luck.