id say make your own turbo manifold, i found it wasnt too hard, and that was for two turbos, for one i could see it would be much easier again, it took us two days to make the manifold and also the dump pipes to a collection into the rest of the pipe
just buy some pre made 90 degree steam pipe bends and some thick walled tubing of around 1.25" internal diameter for the 4 pipes from head to turbo and some 2" thin walled or whatever size the rest of the exhaust is for after turbo
everything looks so nice and shiny in the pic, looks like you have pletty of spare time
![](http://datsun1200.com/uploads/smil49ca0afcd90b5.gif)