Pinion angle question

There needs to be weight on the springs and the car should be relatively to be close to its final ride height. If it isn’t the pinion angle you set and the angle it’s at when it’s sitting on it’s wheels won’t be the same.
So I need to mock up my ubolts bolt everything together and lower it down check it again. Ok thanks I'm gonna have to get my tires on my rims then lol
Another question my leaf springs move side to side about a 1/2 inch or so is it ok to push them over as far to the center as I can to help with tire clearance or will that cause wear on the bushings and springs?