WEBF,
".....But is there not a privately operated Buccaneer too?....."
Quite possibly, but how many of its systems are working, its Radar, RWR, attack system? As someone else pointed out, having an aircraft fit to fly the display circuit and go to war in a modern environment are two very different things. A Tiger Moth can work the display circuit.....
Although I'm not expert on SHAR, there are no doubt numerous avionics systems that would need to be operational that a Hunter, and even a Buccaneer, don't have. Including Secure Comms, ECM, Link 16, Radar integrated into a weapons system, IN/GPS system, etc, etc. How many of these has Art got working on his SHAR?