You can do this installation yourself, just be careful. The rear springs are easy. The front require a little brute strength and some careful pry bar action.
I don't know where you can find a spring compressor small enough for these springs.
Removing the long bolt from the upper control arm is the best way to go because you don't want to mess with the ball joint if you don't have to.
Be sure to pull out the spring pads and seat the new spring properly into them.
GOOD LUCK!
The results are worth the effort. The ride is GREAT! Not harsh or too stiff. IMO the Eibach Pro Kit rides and looks PERFECT! This is THE modification this car needs.