ok i just had a hunt round for RNZAF 727's and there are 2 of them
NZ7271 and NZ7272 both from 40sqn and both have the big cargo door on them so here is what i will do ill make 71 up as a passenger 727 with the freight door that wont open and 72 ill make as a freight so the door opens but i will add the extra windows to make it look like a passenger 727