If this is the 93 Grandprix with the 3.1 eng. The Knock sensor is located just under the manifold back next to the fire wall you can see it from the bottom. It's hard to get to if you have small hands you can touch it from the bottom.
However it is much easer to let the eng. Cool down lean over the eng. Close to the front of the eng.
If you can get your hand and arm back there it is much easer to remove and replace from that point. I know I did one from the bottom it took 1.5 hours from the top it less than 15 minutes. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.