I can assure you that EI-BNA is definitely not flying fo DHL! It is in Marana, Arizona at the evergreen facility under an IAA approved storage programme.
It would be perfectly OK to fly for many more years to come but needs a 'D' check and is only stage II noise. It would also need TCAS and RVSM fitted and is not RNAV compliant. So the cost if getting it flying is high.
It's a shame as she was a great aircraft, original freighter so no problems with the cargo door etc.