The FSM is gonna tell him how to set the ride height to factory specs, measuring the difference between 2 points, etc.
No need for that if adjusting to desired height.
I just get some of the weight off, then turn as stated equal turns (same way, both sides).
About a inch and you may skate on the alignment.
At 2, you're very likely to need it set.
If you do go for an alignment, make sure to discuss what you did and what you want/don't want done as "the book" has step one of the alignment process as returning the ride height to factory spec, which will likely undo what you just did.
That's usually an awkward conversation. Also make sure the person you talk to actually communicates that info to the person working on the car.