K-Member Questions

I have the front end of my 72 Swinger tore apart i am sanding and prepping and replacing everything in the front end. Upon further inspection I found a few things that i am not sure are correct. There is some welding done around the lower control arm sleve on the drivers side, also both strut rod holes appear to be "worn" out. Could someone with some knowledge shed some light on this. I am attaching some pictures for reference.

Also in the last picture, is that flange or bracket stock from the factory


Thank you in advance.

Hans