Buying Black Dranzer - Dark Dranzer - Cyber Dranzer
Cyber Dranzer doesn't exist. Both Dark and Black Dranzer are very rare and if you find one, it's for sixty bucks minimum.
Still... you can ask "Dio" at his buying thread, he sold Cyber Dranzer that he made himself, but the price is high because is a REALLY nice and well made job