To go back to post 1, there IS an operational FA2, ( in fact the lowest houred example too, XZ439 ) in USA at present, in the hands of an ex US Marines & Harrier 2 Test Pilot - he has a good groundcrew, has refreshed with a sim set up to handle like a Harrier 1, and is in regular contact with THE TOP Harrier pilot - you should know who I mean - and HE thinks it's a fair enough idea.
They're completely willing to bring the aircraft over, though a little funding would be appreciated.
As this is pressumably now on a civvie N-reg it would therefore come under the CAA..........and I can't see the CAA ever saying yes to that, not without BAe DA support....and I can't see that ever being forthcoming.....