I have created a render with a V3 model using your shader nodes with various tweaks and changes.  The results can be seen at the link below:

http://www.renderosity.com/mod/gallery/index.php?image_id=1809290

I think the results look awesome!  Word of caution, before applying the displacement map to your render, make certain that the display units in General Preferences are set to inches.  The displacement value of 1 seen in the Material Room image post is relatively too high if your display units is set to feet.  Of course, displacement values can be decreased if things look very distorted.