I know you were frustrated, but it does look like you spent a bunch of time and money to end up with almost the same as you were frustrated about! Those a-arms now have too many degrees of freedom, the angled rod end will change caster and camber at the same time. I think you would have been better cutting more off and bending a new tubular section that kept the rod end perpendicular to the mount, or welding on a straight piece of open tube like below (Ultima a-arms)
You can also get rod end linkage adjusters that are RH/LH male/female tube nut that will allow adjustment on the car.
The alternate way to approach this is swap the ball joint for a rod end.
