Highly unlikely that the DoD will approve the sale of an airworthy F-4 to a private individual in the US, or elsewhere for that matter. It took an act of Congress to get approval for the Collings Foundation to operate their F-4D, and the USAF, among others, have been trying to reverse that decision ever since! They tried to get approval to add a F-105 to their flying collection as well and have been refused this request at every attempt...
-RP