According to the Air Antique website it's at the Midland Air Museum in Texas. Read my earlier reply.
Aye, it is indeed. It has been airworthy in the states since the late 90s, and is a former RAF AEW varient (tailwheel) unlike the SAAF MR.3 (tricycle undercarriage)...
To be fair, if anything more potent than what ever is allowed now was operated in civilian hands, the CAA would have to do a lot of regulation with regards to who flies them. Military pilots spend 2 or 3 years learning how to handle and operate fast jet aircraft on a regular basis, so it would be hard to justify allowing a non military pilot to fly a very high performance jet on what would probably be very rare occasions. Currency on complex types would be a major issue.
The airspace is also becoming more and more congested with regional airports appearing left, right and centre, with associated airspace... and the free airspace is quite often used my military aircraft (East Anglia, Lincolnshire, Vale of York, North Wales, SW England...)