What you describe is not Scriptural but Gnostic at best. See:
John 3:6:
"That which is born of the flesh is flesh, and that which is born of the Spirit is spirit."
Genesis 6:3:
"Then the LORD said, “My Spirit shall not abide in man forever, for he is flesh: his days shall be 120 years."
You can use Scipture to explain away anything. But, so far you have not attacked me and attacked the message.
We are new creations. I have seen the transfiguration, you have not. But, that kind of body is within us, as it was in Elijah, Moses, and Jesus.
Like the emissary in Revelation. Looks like that. Fire eyebrows, face like the sun, whole body full of light, but the eyes have torches, mighty torches for eyebrows, fiery red eyes. Light from his face was like sunlight (mostly at the top), only of a light from long ago and far in the future.
For the longest time, I thought that was what our bodies will be. The "perfect" where "we become as he is, into new bodies, immortal bodies".
It could still be. I have limited knowledge of the future. (Perhaps.)
That is, all of a sudden, Jesus gets on tv or something, and then transforms into *That*. And so do all of his followers.
Why else would God have shown us these bodies, one might ask. ie, in the transfiguration in the three gospels not John. In Daniel's vision of 'one like a son of man", and the one he saw... the Angel of Jesus appearing to John, a witness of the transfiguration...
That was 94, when I saw that.
Through the 30s, and 40s, I wrestled a lot on this.
Finally, really started to suspect I would not die, in my late 30s.
Just a few months ago, and still seeing this, I discovered it was true. I mean you can have a young looking 30 year old -- but as each year goes by and nothing happens... now that I am47, I can not deny it.
That is a picture of my eldest daughter and me. She is 27 now, and pregnant.
I was probably 32 or so in that pic.
The picture on my left, my avatar, is me at 47. I just took that a few days ago.
I have had a lot of concerns about us all changing into beings like that. One of which is, what about everyone else?
As for the concept of us floating up to a heaven in the literal clouds....
Revelation makes it plain: the City is on earth.
I could see the transfiguration, without totally flipping out, but what about everyone else? They would be absolutely horrified, scarred for life.
Then, there is my concern that the world we have would be toast. I hated the world all my life, even spent a good portion of my prime, my twenties, doing a celibate monk thing.
But, times are good here, in the free world.
John stated anyone who loves the world or anything in the world has no love of the father in them... but he is the very same who also said Jesus saved the world, because God so loved it.
Obviously, any of this is very hard to believe. I mean if you could believe this, you could probably literally move mountains. Any one doing this without extensive experiences with the world of miracles and angels... well, my jaw would drop -- if it was not that my jaw never drops, lol.
On the specifics of your response
1. Jesus was born of the flesh, that was talking about spiritual rebirth, which we all have had, who have the Spirit.
2. That is the thing, one thing I finally realized: I already have a different body. I didn't even realize this deeply, until now.
I knew my face was different. I knew I had what I thought was relatively normal flesh. But, it wasn't. My skin is softer and more smooth and sensitive than a woman's. My hair is extremely fine, hair on my head, and over my body.
I realized I was what you get when you are not born of Adam. I have my Eve within me. Part of me. I never had an "Eve" taken out.
I do not contend with God, and God does not contend with me.
I do not accept praise from men. I get my food by people fearing God, and people loving God.
I am essentially a spiritual person, in the flesh.
I am not looking to be a guru, nor be part of a team. I have a team, and people need just a push sometimes.
You totally could already a similar body, but maybe you are too young yet.
I keep anonymous here, so there's that.