if everyone goes to heaven exactly like they are, would there be some people with an arm less (if it happened in an accident for example)? or people who can't walk (wheelchairs in heaven maybe?)? and what would happen to miscarriages and abortions?

Everyone gets a white gown, wings, a halo, all of their limbs back, a Porsche, jelly beans and pockets of gold.

Those whom Jehovah God chooses to live in heaven with him are not humans. The Bible teaches this at 1Corthians 15:50, "But I tell you this, brothers,flesh and blood cannot inherit God's Kingdo." All those who are going to heaven will be spirit persons a form of life higher than humans.

Many people believe in "Church Doctrine" which differs from what the Bible actually says . . . So, there are denominations that believe heaven will that perfect "Version" of you. Whether that is someone who was born with arms and legs now has all four appendages . . . Or Wheelchair bound now walking . . . Many of these doctrines "Sell" the idea that Aborted or miscarriage babies will be immediately in heaven since they didn't reach an "Age of Accountability". . . I am assuming ALSO as their perfect "Version" of themselves . . But since they never really had a consciousness . . . How in the world anyone know what the perfect version is?

So, just simply find a church that is aligned with what you WANT to believe and there you go. Who cares about trivial stuff such as "Truth".

Heaven is like "Make Believe" . . .

you just use your "I M A G I N A T I O N" -

Depending on your perception,

This is heaven and hell.

All human's are basically the same,

just the resepticals are different.