Ride height first.
Get a 24" level and set the camber. Hold the level straight up and down touching the sidewalls of the tires. Zero camber (bubble in the center) will get you through the cruise and to the alignment safely. Have the tires aired up so you do not get a bulge on the bottom that throws things off.
Use a tape measure to measure tow in. about 1/8" tow is OK. Each time you adjust make sure you drive or roll the car around and turn the wheel back and forth. Then measure again.