What is the fastest time for the human body to become sculpted?

I am currently weighing 197.5 lbs and I have a dream to have a body like The Rock or Arnold Schwarzenegger. I am just curious about the ability of the human body and I would like to know what is the fastest time could someone achieve this goal. Could a person really achieve that in like 2 months? I personally want to take my time, but I would just like to still know what is the fastest time possible?