Trick to align and center steering wheel
After installing the Calmini 3" lift in the X-90, I was able to "ballpark" the toe-in by measuring the difference between the front and rear of the tires. (the new tires had a line painted on them.)
Centering the steering wheel was a "trial and error" process. It was difficult to know when the wheels were pointed "exactly" straight ahead. Lengthen one tie rod, shorten the other. Test ride then lenghten/shorten again.
An "old timer" happened to stop by and told me this trick. Run a string around the vehicle at the center of the hubs. Center the steering wheel, then observe the string where it meets the sidewalls of the front tires. Adjust the tie-rods until the string lies flat against all four sidewalls of the front tires. The steering wheel will be centered and the toe will be close to zero.
Tried it and it worked well.