Engine swap wiring

I bought the car listed above to use for my newspaper route. Ran good, drove good. I found a good deal on a wrecked 1998 Camry on an auction site. Bought it, 150,000 miles on the 1998. Runs amazing. Pulled the motor and transmission to put into the 1997. But since the computers are different, the wiring harness from the engine will not plug in properly. So, the question is, if I swap the wiring harnesses, will the swap work, or am I just wasting my time? I do not want to give up yet, especially since I have already put valve cover gaskets and a few other things into the motor from the 1998. Is there a possibility I will have to swap more things over? Sensors, maybe throttle body? I do not want to waste any more time!