"monkey see, monkey do" is very much an Iranian trait, even pre-revolution.
The neo-Islamic regime of Ahmadi-Nejad, well aware that Iraq had outsourced its nuclear and Chemical weapon study and manufacture to Libya (pre-Khaddafi seeing the light) after the first Gulf War and had some 20,000 Iraqis and Syrians in Libya engaged on these projects, now plans to follow the same path.
To pretend (if push comes to shove) to have washed its hands of being a nuclear threat.
VERY easy to do. Russia or one of the break off republics like Kazakhistan or Kirgizstan may go along, as would the tribal regions like Waziristan hiding the Al Qaeda leaders along the Afghan-Pakistan border.
Spread the centrifuges deep among the caves all the above have available and perhaps even avoid satellites picking up the distinct "whine" of the centrifuges that are a dead give-away of uranium refinement.
Poor, tribal, Islamic, anti-American regions will help for small amounts of money and protect the sites with the same fervor they hide Ossama bin Laden and Al-Zawahiri.