Too bad you did not notice that way back, but I understand why. You never got that far. Sooner or later you will get the correct parts.
Also, I don't understand with both 47-54 and 55-59 kits at 24.50", what possible bars they could have sent?
At first I was thinking that their location of the frame bracket was wrong for your truck. But that does no explain falling apart at 22".
I agree with you on the 4-link bar lengths. Emails have been sent out to the techs. At this point they should be sending someone out to install the kit and take pictures so they can make a 3/4 ton installation guide.