Do the install yourself. But beware of the notorious, nefarious, infamous rear lower control arm. Typically the end bolt that connects to the trailing arm gets corroded and rusty and siezes to the inside of the lca bushing. So either the bolt head will shear off, or the bushing will tear out. Either way i'd have a sawzall on hand with some good metal cutting blades. If this does happen to you, you will need either new bushings or a new lca. if you get a new lca i'd get one from a later model teg becasue theya re the same but a bit beefier.
For the front you will need a 12mm socket to take the brake lines off of the damper. Then you will need a 14mm socket to remove the pinch bolt that holds the little fork to the bottom of the damper. Then you want to push down on the knuckle to slide the fork off of the damper most of the way. Next use 2 17mm sockets/box wrenches to unbolt the bottom of the fork from the lower control arm bushing. Wiggle the fork down and off of the damper. Pull the fork out of the way. Then use a 14mm deep socket to unbolt the damper hat from the chassis from above inside the engine bay. Hold the spring+damper as it drops out. Then put your new spring+damper in making sure the little pinned area in the back is lined up with the little slot area in the fork sleeve. Now revers these steps. Oh, but when you torque down the 17mm fork bolt, make sure you get a jack under the lca to compress the suspension. You want the bushing to be in its resting position once the car is sitting back on the ground, not all bound up. Hope that all makes sense.
good luck. I just did my suspension in a couple hours yesterday afternoon.