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There really is no "easy" way, you're trying to convert a car without power windows to power windows. Your harness should actually be ready to accept power windows without much if any modifications. Most car manufactures use one harness for all models but just don't use whatever they don't need.
meaning the sensors will be there just not plugged up
Should be, just look for some diagrams online and check your car to make sure. If it has them, best bet would just to be to head to a junkyard and pick up some doors IMO.