Wiring is going to be your biggest issue. You WILL need, either an SI or HF crx harness or the harness out of the same gen Integra as the motor plus an injector resistor box, OR, you will need to rewire your existing DX harness from DPFI to MPFI and still get the IRB.
As far as the vaccum lines go, I have no idea, and you can use the 90-93 Integra axles, I don't know if newer axles will work.