Someone said, 'The Bible records no sin of Mary.'
The Lord God did not need to focus in on the fact that Mary had sin like every other human being, because the Word from God Himself says in I John 1:8 'If we say that we have no sin, we deceive ourselves, and the truth is not in us.' Here He is dealing with the Adamic nature of human beings, and I take it that you believe that Mary was also humankind. Then God speaking through the Apostle John says that 'If we say we have not sinned, we make Him a liar, and His Word is not in us.' [I John 1:10] And unless you think Mary is co-God, she also had a sin nature and also might have had a few venial sins on her record, that needed forgiveness from Christ. And if you agree that she {your blessed Mother} was a human being like us, then you would not want to make her say she had no sin, thereby making the Lord a 'liar.' [I John 1:8 & 10]
You said, ' . . . says she was "full of grace".
I concur with you that Mary was a virgin and a very special lady in all areas that we might elevate womanhood.
You said, 'To be full of grace is to be absent of sin for their is no room for sin in a grace filled soul.'
Ray is saying, 'I might suggest that you are probably a grace filled soul; when we trust and continue to believe in Jesus as our Savior, all of His people are grace filled. This does not mean that we are flawless. We as believers should strive to be like our Lord. Matthew 5:8 says, 'Blessed are the pure in heart for they shall see God.' The only soul who has ever lived on this earth without an Adamic Nature, is Jesus Christ our Divine Lord and Savior.
If the mother of our Lord did not succumb to physical death, then God is a liar where He tells us in Scripture 'And it is appointed unto men {humankind} once to die, and after this the judgment.' John the Baptist, Jesus cousin, passed through death; Mary received no special dispensation as some may think. Again, if the Bible, which is His words to us, does not say there was an Assumption of Mary into Heaven then it never happened.
Mary, the mother of our Lord, John the Baptist and all Christians are saved, forever, when we place our faith in Jesus, as Mary said she did, in Luke 1:46-47. Hear the words of the mother of Jesus. 'And Mary said, My soul doth magnify the Lord; and my spirit hath rejoiced in God my Savior.' Neither Jesus nor Mary established Mary as a co-redemptrix, but rather she willingly bows before the Lord, yielding her will and spirit to Him for His spiritual watch-care.
When all of God's people are justified by faith, [Romans 5:1] the Lord God looks at us through the atonement of Jesus, our Savior. That's why John 3:16 is the truth rather than a lie.