Hey Hey lilarch ,
You got the opportunity, just give it a go. You had mentioned in ur application abt ur height, Didnt ya? They must have seen tht , and i think they will b OK as they have invited u ...
erm.. i'm not sure but i havnt heared of height measurment in a GAD (i kno they do check in Open days) ... Just give it a GO - All the best !
and One more thing, whn did you submitted application to Emirates website and whn did u get the invitation? thts would b really helpful for me ...
Cheers