metallicsniper

I am starting to plan a twin turbo build and want to run the turbos right off the manifolds. I know there are a couple companies that sell kits but I want to fab one up myself. I saw a thread about one done with 2010 camaro manifolds that were cut up and welded. Has anyone else done this and what manifolds were used. I was thinking of making my own manifolds. Also I would prefer not to have to use a pump for the oil return. Is that possible? I'm not sure if the turbos would be high enough to drain above the oil level in the pan. I guess I should tell you all that I have a 2000 ls1 camaro with a t56