This thread is really not the place to keep that discussion going. If I recall the guy who started this thread took members money and they never got parts. I CANNOT say however if the issue ever got resolved as that is about the time the forums were being spammed. But you don't want people contacting the original poster without being able to verify if he is legit.
That said xiogary has turbo manifolds available for the etec engines. The ecotec engines seem to potentially have direct fitment with a vxs-r turbo manifold but that still needs verified. So options for the manifold are out there. I personay am someday checkinto the vxs-r manifold and seeing if the computer will just plug it. That and a few other pieces matched off the oem setup should be an effective turbo setup, hopefully.
For the etech guys piggy back or standaloneare the best options unless you adapt somethng from somewhere else
another project I want to attempt in the faarcar future is making a replacement harness and running a vw 1.8t system as management. But it would be all the sensors and such but programming would be available from multiple resources.