First and foremost, Hercules is the Roman equivalent of the Greek Herakles.
Herakles was not a god, but only a demi-god.
He was the beloved son of Zeus and the mortal woman Alcmene.
His name literally means Hera's Glory, implying the dominion Hera had over him.
Historian Diodorus Siculus believed there were three Herakles.
Who exactly was the real Herakles ???
Looking into the tale of Prometheus ; it was Herakles who freed him.
This took place at the dawn of human existence which cannot be possibly reconciled with the traditional Herakles.
For ease of understanding; we classified the three Herakles as such : the ancient Herakles, the second Herakles and the traditional Herakles.
The best way to fit your question of Herakles- the traditional Herakles into a time frame was that the creation of Pandora took place approximately 4,000 years ago.
So, the traditional Herakles could possibly lived at least five generations before the ancient Herakles. This would probably be in a time period preceding 1450 BCE.
The assumption was that the deeds and exploits of the other two Herakles were blended and blurred to reflect the life of one individual; the traditional Herakles.
The traditional Herakles was the Herakles of legend.
The Herakles of the Twelve Labours and one of the Argonauts who went in search of the Golden Fleece.
This Herakles died shortly before the Trojan war, and one could place his birth at approximately 1300 BCE.
As to your question of wearing what Herakles worn was not appropiate.
He was mostly portrayed naked in most paintings and sculptures, and you could be possibly charged with indecent exposure.
For more information :
http://www.theoi.com/
http://www.greekmythology.com/
http://en.wikipedia.org/wiki/ ......