Yes it will fit between the frame and clear the steering rack. Note it will go in a s130 so i think there is little more room there compared to an s30.
Also the picture makes it seem further off the engine than it is.
here a picture of the mock up process it shows it a bit better!
Also you can see the EGT
The turbo will feed the supercharger and that wil be inter cooled and feed the plenum on the ITB's i have a special grind isky cam, fully ported head, nismo valves, H BEAM rods (carillo nock offs) Ross pistons and ITBS
very pumped on this as it all seems to fall in place now.