I wouldn't run JKS arms if they were given to me.
Check out Currie & Savvy arms
and you already found Clayton Offroad.
I run Rokmen arms, and they are the definition of overkill when it comes to strength. If i was going to do it over again with whats out there now, I'd do Rokmen lowers, stock or Currie front uppers and Savvy's aluminum rear uppers.