“Adam had his eternal body from the beginning of his creation.”
Our pastor has mentioned how just like Adam (who was, as you mentioned, doing what he was supposed to do forever) - that we will have bodies, eating, drinking, and doing work. Of course before the Fall - work was fun. It was only after the fall that it became a burden.
“And there will be science too! Adam giving all the animals names - that sounds like science to me!”
Prior to our pastor saying that I thought that a good friend of mine, on his death bed, was just delusional. He woke up once, said “The rock outcrops are amazing!” - then went back to sleep. He was (is?) a geologist.
Another time he woke up and said “Beer. There’s beer.”
That’s funny. I appreciate humour on these realizations.