Depends a lot on what part of the USA the repairs are completed. Large cities are going to be more expensive than rural areas as the price of labor is different and the overhead to do business is a good deal less in rural as compared to cities like New York or Chicago.
I wouldn't be surprised if the parts alone cost $500 at some repair shops.
A few years back I paid $170 just to evacuate and then recharge the system; No parts involved.