Do you have much tools at home? I did mine in the driveway with basic tools and a few vatozone rentals in a day. The hardest part is pulling the spindle off the knuckle, it rusts on over time. With a soft hammer and liberal amounts of pb blaster and swearing it will come off. I stripped one side, took it to have it pressed, while the new ones were being pressed in, pulled the other side off.
Don't let the job scare ya, it isn't that hard