That's probably a very fair price for a safe starter team. They'll keep you out of trouble which is worth alot. Is the harness bio or nylon? Team? A new nylon team set will run around $500. Add in the collars ($70-100 each), pads ($30 each), good lines ($50+), bridles ($100 each)... It might be a good deal or it might not be. Used nylon harness don't have a good resale value. I just bought a very well made used one for $55. The hames and heel chains were worth that much. A well made used leather team set will go for $500-1000. You can pick them up cheaper but they tend to have issues. A forecart will set you back another $500 too.