It's been a while, and this thread sort of faded away, but I did finally choose a color and I am very happy with it. It's similar to the color that TaraP posted. I never could find the Haycock brown, but this is Benjamin Moore "Coppertone". The pictures don't show it accurately, but it's close. Looks more brown when it's dark or cloudy, more orangy when it's sunny.
We hired painters for this and I'm so glad, with the heights. I still need to hang pictures, but at least I've already chosen the color for the upper hallway. (A deep green. )
Anyone else make a choice to show? I have a lot more rooms to choose color for!