Hi Walt,
You are exactly correct-the first Big Kahuna(BK) I installed using two cord hangers and this installation worked, and continues to work, very well. At that house my smokers and my grills are on the same level so if I want smoke in a grill I can simply route the pipe from the BK into the grill, leaving the BK attached to the SI. At my other house the grills and the SI are on separate levels so I built the stand for the BK so that I can easily carry it around. That having been said I am about to install the second BK using cord hangers since nearly all my smoking is in the SI and not my grills and it is quick and easy to detach the BK and put it in the stand if I need to use it with my grills. I really recommend the cord hanger installation. It is quick, easy and requires no drilling. Good luck with your BK-I think you will find it very useful. If I can help in any way let me know.