Those places suck. We had "Great Bear' here and I don't care if you went in with a fresh suspension, they tried snowing you for ball joints and bushings. Get the tools, do the research, and have at it. Do everything at once and have peace of mind. It's just grungy and dangerous, but not rocket science. The key is the spring removal/replacement. Dangerous is an understatement, but with the tools and the talent, and a safe place to work, totally doable. Plus for $700 you can buy ALL the parts, ALL the tools, and enough beer and pizza to get several friends to come help.