Generally brake work is desirable in most shops. As to the price of the OP`s estimate, sounds high. Just a week ago the radiator was replaced in my 95 GMC for $940.00. I replaced said radiator myself 10 years ago for just over $400.00. A brake job with cables last fall was $840.00 which I questioned and the shop owner showed me the price of parts to which I asked if that was the best price out there and he replied they are all the same. The work described here was at two different shops one of which is a long time family friend. It`s discouraging that I can no longer do my own work and I`m not interested in what's out there in the market.