I did my own custom kit for my ride and I didnt have any problems getting parts for it. I think your right maybe I should build my own kit and slap my clubs name on it. After all said and done my kit came out to $1800 but mine is a little different as far as extra parts go. Please keep us informed on the performance of your ride when you go to hit some boost.
Oh and my wastegate goes to the atmosphere and yes it does sound pretty awesome combined with the TurboXS RFL BOV. It makes peoples heads turn around alot. I suggest doing it. Plus I think theres a little performance to gain by doing it. Seems as though there would be less restriction in the exhaust.