$350? jesus thats expensive, i mean you can get the engery suspension master sets for mid $100s.
installing the bushings isnt a bitch. i did one with my friend on his eclipse at mcdills shop (they have a press there) and its not hard, just time consuming pulling everything apart. if you dont use a good lube with the bushings and relube them from time to time, then they will squeek like a bitch. get some marine (water proof) silicone greese, works the best.