Use the stock harness and modify it to fit the motor. I don't think p/s will fit but it would be good to ditch it anyways. A/C can be kept with the HCP A/C mount.
In a follow up to your pm, if boost is in the future I'd go with the gsr swap, especially if you want to keep a/c when boosted.
there right about the ps I have seen it fited onto the car however there will be a small hole on the hood for the pully to clear
