Message directed solely at "Singapore Airlines"....
Dude, you must not be playing with a full deck and obviously with a shortage of thinking brain cells in that skull of yours asking rather retarded and naive questions in this thread !
Care to enlighten us all on what your word "unfixed" and your phrase "fix it yourself" means ? I don't see this word listed in my 'proper English' dictionary nor thessaurus.
And, how do one "fix" a model or do you mean "build" a model ?
Never heard of the words "unbuilt" or "unassembled" ever ?
* Not a fan of super geniuses that cannot write proper English and asking excessive dumb and retarded questions !