From the looks of the pictures I have seen in looks to be nothing more then two rectangles with 3 injector ports along the bottom and two mounting brackets. Besides that fittings, pressure regulator, and some braided stainless lines with have to be purchased. I will have to price that stuff to get an accurate idea of how much could really be saved my making your own logs. It is small precision fabrication, so unless your doing it yourself there is no money to be saved as most shops such as the one I work at charge over $70/hour labor. I could see the layout and welding of these taking 3-4 hours easily, if not more.
