How to "rough in" front end alignment after rebuild?

Yes. Keep in mind that you have to start from from "zero" being that the car is on a level surface and the wheels are in a "neutral" position. Also try to take all your measurements from a fixed point which I usually mark on the floor and wheel so I can set up and measure consistently. It's not perfect and there are so many variables involved, that for me it's a matter of trial and error, adjusting and driving until it looks and more importantly feels right.
Kickn Tail there! I'll have to "fab" something. It SUCKS The Old School guys laid down their tools..