I hear you fellow ageing audiophile!I once had Chris Feickert over at my place when they had the first commercial version of Adjust +. They measured my setup, which I did entirely myself just with a protractor, and declared that there was nothing to adjust…even VTA and Azimuth were spot on. Now I find my vision isn’t as good, so I have more difficulty getting it right…something like Adjust + would now be quite helpful.
Maybe you aren't ageing but I am, once what was easy to align is difficult and exasperating. I have a great friend and a retailer who are both very good at the finicky stuff and have most of the latest setup gear. So far my method has been to have them setup the system and then listen. Both are wonderful in coming back to tweak things.