I did find and interesting way to check if your forks are bent.
The guy loosens up everything so that the tube will spin while on the bike. As you slowly spin the fork tube, you can see it wobble the front end if it's bent.
Another was about aligning the rear by measuring the distance on each side from a machined point on the swing arm. I always thought those marks on the adjusters were way too crude to use for alignment. Maybe a mic from a machined edge would be more accurate and pretty simple to do.