axles, rear t-bracket, and youll need a drivers side upper mount from a b-series civic, i cant remember if the integra mount works there or not
also, get the throttle cable from the integra
radiator and heater hoses wouldnt be a bad idea
you dont need the wiring harness
intelligent people would get the brakes off of the gsr, because stopping your car is just as important as making it accelerate faster