You forgot one!
Joseph Smith was asked "Will everybody be damned but Mormons?"
He answered, "Yes, and a great portion of them, unless they repent, and work righteousness."
Quoting MRM... *chuckle*. The MRM is the special olympics of the anti-mormon crowd.
We know when we've done enough when the Great Jehovah says the work is done.
Here's a modern day Apostles teaching the doctrine of perfection.