Yes they are the same ackerman setting, all we did was add some material so that I could mount the stop screw onto the assembly, the added bonus to this is that it gives the arm a little more strength as well.
The covers over the top arms are aluminum tubing, but I found that it seemed a little soft so I put a brass tube over that, its just a overkill to try to save the top arm from having the pivot ball from breaking out. Although I noticed that we haven't had issues with that problem for a while now, maybe a change up in material.
The body stops are just long body pin trimmed and bent to fit the screw in the arm, the tops are from Xray and are old sway bar mounts. The nice thing about these are that you can have the body mounted and turn the front wheel and still access the set screw to bring the ball up against the body for a nice close fit.