If you are going to "break down" and buy some great boots, look at some mountaineering type boots. They are generally better built and more suited to sheep terrain than any hunting boot made. I just bought a pair of La Sportiva "Glaciers". They are a $250 boot and they are bullet proof, JUST the medicine for a Dall Sheep hunt.
Another boot I looked at, a little lighter weight, was the Asolo, cant remember the model, but it was like the 535 or something like that. It was incredibly comfortable.
You should also consider buying from REI, as being a member you can return any product, even after heavy use, if you are not satisfied!
Good LUck
By the way, if you are going to go with a "hunting" style boot, check out the Irish Setters too. They are alot like Danners.