She could fly if somebody has a cool 10 million + to build a hangar to maintain her, pay for the major maintenance that is an absolute minimum CAA requirement to get her airworthy, pay Marshalls to act as the OEM support and pay the other contractors required to maintain components, etc, etc, etc. You see the fight XH558 has to keep in the air..
VTTS need a million plus to keep 558 flying a few displays every year. Ex military complex aircraft on PtF tickets are not cheap..