I'm a little confused on the pricing, because the list price seems low too for the whole assembly. A bunch of dealers have it listed at similar prices though. I'm not sure if I'm misremembering the price, or if there's a mistake in their system?
If you spin that crow's foot 90° you will get a more accurate torque.
https://www.tekton.com/how-to-accurately-use-a-torque-wrench-with-a-crowfoot-wrench
So do the '98-'99 model years not use an HP switch? If not then how does the booster pump turn off? Or do you mean prior to 2000 was a different switch?