jgs can make the log manifold and supply the stuff for the wastegate + turbo then take it to a shop so they can position the turbo flange so that it works with the turbo and your turbo is in a position where it's not hitting the engine or fans. you can tesh fit this then mark it off then go to a shop and have them cut and weld the flange on.
don't forget you'll need a downpipe made as well and exhaust shop will do it cheap like 1-200
if you go to super snail. they'l do you a log manifold, and downpipe for you turbo as well as have the stuff coated but the downside is that you pay $800