I ordered this fuel rail kit to test out on Domino. If it works well, it may become the next new product that SteamSpeed will sell. :) In any case, the stock rails on the ej207 motor looked a little mangled, so they would be good to replace.
The quality of the rails and the kit looks great actually. And I was impressed with quality of the fuel regulator as well. In a production kit, I think I will go with parallel stainless steel feed lines and return lines. At some point though, it must connect to the small hard lines in the chassis.