You're not thinking big enough. When Christ was raised from the dead [flesh & blood] was he not also proved to be the man without sin [spiritual]? Now was he always without sin? of course. Was he always divine even when he was in the body? yes.
Now bear with now. Because you say that the first fruits of the resurrection of Christ is when he ascended to heaven. But what makes Jesus' resurrection unique compared to others in Bible history who were raised from the dead? It was at Christ's death on the cross that saints were raised from the dead (Mt 27:53). Some have suggested that these saints in particular were recently deceased and they ascended with Christ into heaven. If as you say what Adam and Eve lost in the garden is the opportunity to be assumed into heaven and skip death (just as Enoch and Elijah skipped death) and that's all the resurrection means, why aren't saints today skipping death and ascending to heaven?
Well never mind, your answer will probably be that it is appointed once for man to die and then the judgment (Heb 9:27)
Let me put it this way. There must be a general judgment at the end of the world. It can't simply be that people live and die, live and die, and so on, and it happens that way forever and judgment only refers to be people being judged one at a time, each one after another when it's time to die. It must be that there will be a final judgment with the damned all sentenced at once and the saints together judged according to their works. Just as the kingdom of God is not just something that resides in our little hearts but is corporal- the bride, the church, the...dare I say the body (Eph 1:23).
Jesus was the most human there ever was for he was without sin. What he modeled for us is what it looks like to be human in the truest sense. His rising from the dead and being sinless, the head of the church, and taking responsibility for the sins he did not commit- so he maintains, not guilty. And so will his saints at the end of the world be raised a new body, without sin [flesh & blood], because the sentence has been taken off them they will be flesh & blood and spiritual, free from the restraints of such a pointless dichotomy (flesh & blood or spiritual?)!
Neither Enoch and Elijah ascended into heaven before Jesus did!!!
No one has ascended to heaven but He who came down from heaven, that is, the Son of Man who is in heaven. John 3:13.
Enoch was taken to Abraham's Bosom aka Hadean Paradise perhaps to spare him from the corruption and evil that eventually led to the flood.
By faith Enoch was translated that he should not see death; and was not found, because God had translated him: for before his translation he had this testimony, that he pleased God.
THESE ALL DIED IN FAITH, NOT HAVING RECEIVED THE PROMISES, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth.
Hebrews 11:5,13
Elijah was simply carried far away by the Lord in fact under Elisha's prophetic ministry Elijah wrote King Johoram a letter, how did he manage to write a letter from heaven?
And it came to pass, when the Lord would take up Elijah into heaven by a whirlwind, that Elijah went with Elisha from Gilgal.
And the sons of the prophets that were at Bethel came forth to Elisha, and said unto him, Knowest thou that the Lord will take away thy master from thy head to day? And he said, Yea, I know it; hold ye your peace. And it came to pass, as they still went on, and talked, that, behold, there appeared a chariot of fire, and horses of fire, and parted them both asunder; and Elijah went up by a whirlwind into heaven. And Elisha saw it, and he cried, My father, my father, the chariot of Israel, and the horsemen thereof. And he saw him no more: and he took hold of his own clothes, and rent them in two pieces. And they said unto him, Behold now, there be with thy servants fifty strong men; let them go, we pray thee, and seek thy master: lest peradventure the Spirit of the Lord hath taken him up, and cast him upon some mountain, or into some valley. And he said, Ye shall not send.
2 Kings 2:1,3,11-12,16
And it shall come to pass, as soon as I am gone from thee, that the Spirit of the Lord shall carry thee whither I know not; and so when I come and tell Ahab, and he cannot find thee, he shall slay me: but I thy servant fear the Lord from my youth.
1 Kings 18:12
And there came a writing to him from Elijah the prophet, saying, Thus saith the Lord God of David thy father, Because thou hast not walked in the ways of Jehoshaphat thy father, nor in the ways of Asa king of Judah, But hast walked in the way of the kings of Israel, and hast made Judah and the inhabitants of Jerusalem to go a whoring, like to the whoredoms of the house of Ahab, and also hast slain thy brethren of thy father's house, which were better than thyself: Behold, with a great plague will the Lord smite thy people, and thy children, and thy wives, and all thy goods: And thou shalt have great sickness by disease of thy bowels, until thy bowels fall out by reason of the sickness day by day.
2 Chronicles 21:12-15