Okay here is my next project. I have a 91 coupe auto that has recieved a full transplant from my 87 TII donor. Every last inch of wiring, all electronics, engine and drivetrain, everything except steering. Anyhow the s5 obviously has rpm sensitive power steering and requires different cpu and such than the s4. What i need to know is if i am missing anything in my parts list:

Remaned S4 Rack, new pressure lines (2) and return line (1), New outer tie rods (the rack comes with inners), S4 Power steering cpu, S4 pump assembly, and s4 p/s relay plugged into existing wiring, and new front mounted cooler. Am i missing anything? I assume the rack bolts in the same is this correct?