I'm building up a second Waterford this winter. On neither did I get a detailed quote. The price was within the ballpark of what I expected so I just trusted the shop that the prices they quoted me are fair.

Perhaps I'm just naive, but trust is important. As I've dealt with this LBS over the last year, I've more and more stepped to trust and away from questioning prices. Sometimes the price I pay for a part or serverice seems high, but other times I wonder how the shop is going to make enough money to be in business next summer. It all works out, I've learned a lot along the way, and they really treat my bikes well.

If it makes you feel better with a detailed quote, do it, but, my opinion is that if the overall cost is within your ballpark estimate, go with it.