....how and where will the aircraft be repaired? Slow & low ferry back to DXB or fly in the specialist equipment and parts required to do this in MEL?
How? Probably with a bit of difficulty by the looks of things, if the reports of the damage are correct. Getting a place to put it into to do the repairs will probably also be a fairly 'challenging' I'd imagine.
Where? Melbourne - the only way that aircraft will fly out of Melbourne is: a) after it's been repaired and signed-off as airworthy, or b) as cargo, once it's been disassembled.
The questions are good ones though.