Even if you could get it out again with a viable payload (rough back of fag packet calculation about 40t penalty to max tow for Isa for tora 2011 at 600ft) I'm not entirely sure where you'd park it ! 767 can only go on stand 26 and just looking at it (haven't bothered getting the tape measure out) I doubt 26 could accommodate anything larger without impacting other stands. Until BHX rebuilt the long haul pier the arrival of the 777 would wipe out three stands.