I'm gonna go against the trend here... $180 is a good price. Old RSX 7 speed STI aren't the easiest to find, and they may be a few clicks away from death. I looked on ebay, and there was one set for $40 (which has never been tested) and another set for over a hundred. This isn't including cables, stops, or housing. Stops are $12-15, cables are $3 each, and housing is by the foot. Granted, I don't know the condition of your bike and components, but you may have to add in new brake cables and housing, plus new bar tape. I can see exceeding $180 pretty quick to be honest.