You proved my point by not being able to provide even one verse supporting your idea.I proved your point that physical death is the payment for sin? I posted passages that shows Adam was separated from the presence of God for 930 years after he transgressed the law of God (don't eat the fruit of that one tree) and before he died physically, and when he did die physically he did not die as the son of God. Adam was on his way to hell because that is the wage of sin, one sin. See James 2:9 here. No. Adam was dead spiritually for those 930 years and the fact he died physically proves it. Unlike us now who have been born again and have received the Spirit of God, who is the life of God, and who are sealed by the Spirit in the righteousness of Jesus Christ where personal sins cannot condemn us, Adam was not.
On the other hand, I provided several passages actually equating this death with physical death. One was God's statement of the curse, noting that Adam would return to dust. Another was Jesus' claim that there is only one dying before Judgment.
Your comments are a bit strange since Able and Cain were not separated from the presence of God.
What you should have said is that Adam was cast from the Garden so that he woukd not eat of the Tree of Life and live forever.
It does not matter when Adam died. God did not set a date.