Ending up changing turbos. Now I have figured out how to fit a Garrett GT3076R and a Tial F38 WG. Ball-bearing, water-cooled.
I am welding up a T3 angle extension to move the turbo away from the engine so it will fit and add the F30 WG above the turbo itself, then dump in after it.
Also wrapped the exhaust manifold.
Figuring out what angle I need for the T3 extension. About 58° on 5" radius: