I have the speedway motors low cost caster camber gauge and some gil smith turn plates. I use string, conduit, and jack stands for toe. I had great luck with these but I'll have to buy a wheel mount caster-camber gauge the next time because I won't be able to stick the speedway caster camber gauge to the hubs anymore.

Aligning an A-body with wide front tires on your garage floor is tricky because you are basically at arm's length under the car the entire time you are making adjustments.