OK we just got my front end back together using a cool little trick.

Since the ball joint on the right side of the car was held in with bolts instead of rivets, we simply unbolted it, took a new one and popped the stud up into the knuckle, and then pushed the arm down enough to line up the bolt holes on the Ball Joint and bolted it in.

On the left side the original joint was still riveted in, so we cut the tops off the rivets with an angle grinder and then used an air chisel to pop the joint off, rinsed and repeated what we did on the other side.

Now if I ever have to do this again, I'll simply unbolt the new ball joints to get the knuckle back into the lower arm.