DIY Alignment made simple, easy and fast: Phone AP Gyraline

Cheaper than paying a shop to not follow your instructions ($140 plus $1 per use). No math and comes with the jig. I've been doing my own alignments since the '90s and while the jig could be better, I don't see any serious accuracy issue that I would care about. No first hand experience and I won't be buying it but could be a huge help to many. Gyraline.com