KOPS (knee over the pedal spindle) was discredited in the nineties - this article by Keith Bontrager was published in 1998 https://www.sheldonbrown.com/kops.html
There are others.

The saddle set back is adjusted to balance you on your bike properly and thus will vary depending on bar height, how stretched out you like to be, etc.

Certainly, with a new bike, you could transfer your numbers across as a starting point, but to be honest, I think you're better off starting from scratch. It's not hard to get a basic set up and no matter how you start, it has to be fine tuned on the road anyway.