@asad
i brought along a toyota 2JZ engine+tranny when i moved back to pak from dubai.
i got it put on a wooden crate and strapped tightly, especially from the tail. then they wrapped it in v thick cellophane which has made it virtually inaccessible and safe from mice even after 1.5 yrs!
i saw some crates in the north karachi timber market, but i'm sure u can also get 'em from some other accessible area.
try those shipping agents i'm sure they'll be able to help you out