Paul and James are not 'soul-mates'. Paul said we're not made righteous by works, and James said we are. You can't start doing exegetical gymnastics and say stuff like, "Paul was taking an outside view, and James was taking an inside view. They're really saying the same thing." No, they're not.
And the word is not "justified", it's "made righteous". It's the whole ball of wax, from the declaration of the sinner as righteous, to the actual making him righteous by degrees throughout his life, with the process completing when we meet God at death.
So throw James out. Keep it as some inspirational (not Inspired) literature if you want to, but it doesn't belong in the Canon.