It is a fairly easy job, I did mine in two saturdays outdoors with hand tools in nice weather (rear end one saturday and the front end the next), the car looked a bit odd driving down the road that week. I ran into an assortment of small problems doing the job, the cheap floor jack I had cleared everything fine jacking the car up, but with the new springs would not clear to pull out when done ( a few boards under the tires when lowering fixed this problem) also the cheap spring compressor I used for the front springs was too long so I had to shorten the threaded rod with a hack saw. (exact design of the spring compressor makes a big difference, I had to exchange 2 before finding one that was close to fitting, as noted above, it was also the smallest of the 3, single threaded rod type with a pair of swringing hooks for the spring, I almost had to trim the hooks down, clearance was very tight) If I were paying to have this done I would not pay over $200 (plus allignment, but that should wait a couple of weeks until they settle) , using the one of the cheater methods the rear springs/shock install was easy, with practice and the right tools it could be done in a couple of hours or less. The front was a sligtly more complex, I also installed a set of offset steering rack bushings, these proved far harder than I expected due to a broken spot weld, etc.
Ike