Yeah, Chino's right....I just installed them......
Install is pretty straight forward.....it sounds like you are just going with the GC sleeves...That means you're going to have to take apart your stock suspension to install them.
I think for the front there are just three bolts under the hood at the shock tower, one for the swaybar link, the brake line clip, and then just the two that bolt the strut to the knuckle....
So that's just 6 bolts and one clip to take the front out.
and come to think of it there are just six bolts and a clip on the rears as well.
The biggest pain is going to be compressing the springs evenly and then taking the assembly apart, but that's not too bad
What will probably take the longest is getting the height exactly where you want it, unless you get lucky the first go round.
I think there are a couple of How-To's on this board as well..
And just my opinion, although I always install springs on my own, I would probably gladly give $50-$80 to have someone install them for me.
Good Luck!
-J.J.