Vlad,
Yes: a work intended as fiction that caught the wind, a conjuring trick, mistaken identity or deliberate switcheroo, coma misdiagnosed as death, the tiny number of reported to Paul exaggerated the story, Paul himself exaggerated the story …
…how many possible explanations would you like?
It is not a question of how many explanations there are or how many I like.
The only one for which there is historical attestation for is a real resurrection.
Now you are in the business of suggesting alternatives they now have to go up against the Real resurrection claim and the attendant history.
Mistaken identity, unlikely although there is some reported delay in recognition explicably by believing not unreasonably that he was dead.
Deliberate switcheroo? Do you mean a double?
Coma misdiagnosed as death. Well it happens today I suppose.
Three things militate against it Firstly they would have been more familiar with death, secondly the nature of the injuries, thirdly from what we know of the trial it would be important that He was quite dead.
Paul exaggerating the story? For what purpose? He knew presumably that post ascension encounters were possible and that others would have had similar experiences to relate.
I think rather that the resurrection story is one Paul comes into. The enjoinder to check with witnesses comes in an epistle.