Front end alignment at home

My car had weak support tabs since purchased in 84.If you feel those tabs were solid more power to you. Most importantly is the ecentric tabs, they round over easily. My support front Tabs for the ecentric were welded with long crappy sub standard straps and supported prior to purchase in the 80’s but until resto they were not really dealt with the right way. The rest of the main rail and arm structure was fine but the tabs and supporting structure were weakened, flexed out to much, so alignments just stressed the ecentric tabs even more. hard to get a correct alignment that would last. They will crack right at the rail line over time, regardless of any rust issues, especially with BB weight and hard use. So far it is holding up well, but can not imagine others have not had the same issue!