Anthony, it depends on what level of experience you have with cars. I did it with my daily driver in a matter of about 3 hrs on a Friday afternoon. The best thing to do is prepare for everything you need and then have a backup of someone who can drive you to a parts store in case you need it. The level of I experience I had when attempting this was that I am extremely comfortable with wrenches in my hand and I also have some electrical experience.
If the car is not your daily driver, then you'll be fine.