the question is, given there is a good and evil metaphysically beyond just our physical brains and concepts and emotions,
How is that a "given"?
This makes no sense at all.
Evil is not an entity. You can use it as a noun
symbolically, but It's really an adjective. It's a label used to classify behaviour.
If there is nobody to engage in evil actions, then the very concept of "evil" doesn't even make any sense.
Like talking about "depth" in a 2d world.
what should be the result of choosing evil side as opposed to the good side.
Here, you're not talking alluding to facts - which you would need to do if your goal is to
prove things objectively.
Instead, you're talking about opinion and personal preferences.
Mere opinion and personal preferences are not the way to "prove" anything objectively.
The topic is not about whether God exists or Messengers or Angels exist, all that, can have it's own proofs.
To be fair... it can't, because these are all unfalsifiable claims. They can't have proofs (or even just evidence) by definition.
But when you read Quran, for example, if it gives a proof for the day of judgment, it's saying given God exists, this a proof for the day of judgment.
The quran is a collection of claims. Any proof (or evidence) for those claims must necessarily come from other sources, or you end up in a circular argument.
Sounds like your "proof" really is nothing more or less then something akin to "
The quran says it, I believe it, that settles it"
If it gives a proof for Messengers, it's saying given God exists, this a proof for Messengers. And there is of course proofs for God and his existence and Oneness, so you have to put everything in it's place.
"of course"? Not even remotely. There are no proofs for any gods whatsoever. Not the muslim god, not the christian god, not the norse gods, not the ...<insert any gods ever claimed by mankind>.
This is saying, given we accept the spiritual unseen world and nature of good and evil, and God and Angels and Messengers, can we prove hell is a rational thing to believe in?
In other words:
"
Given the quran is true, we can conclude that the quran is true".
There's that circularity I mentioned earlier....