Im not sure about apron space, it has been extended over the year, im sure they will continue to do so if required, certainly land is not too much of a problem. Liverpool has handled many types of wide-bodies, infact MyTravel were using a DC-10 last summer for extra capacity regularly. Years ago when Wardair were flying they also used the same type on a Toronto service. The runway length is 7,500 ft which is a bit longer than Birmingham’s, its probably adequate at present.