That's the good thing about reality. You don't have to make stuff up!
As to it being complete and truthful...I made no requirement that it be complete in every detail. Just that it be consistent with the facts and internally consistent. It also helps if it is simple and straightforward.
What do we do when we don't agree as to what the "facts" are, and don't trust the integrity of those conducting the investigation? Simple and straightforward are great things, but just because you'd like the world to be simple all of the time doesn't mean that it is.
What you presented is not a narrative that explains 9/11. Such a narrative would sound like this:
In September, 2001, powerful people covertly caused four planes to be hijacked. The hijackers successfully crashing three of them into buildings that symbolized US economic and military power. A fourth airliner crashed into an empty field after an apparent attempt by the passengers to gain control of the plane.
Does this represent your position?
Lets be honest, the narrative offered by any "truther" will be summarily rejected by you as paranoid speculation. Simple doubt and/or disbelief of the official narrative, or the veracity of the official storytellers cannot be tolerated. Essentially we have according to you two options: believe the official story, or be labeled a crazy person.
No, I presented a simile to make a point, which is that truthers avoid stating a theory out loud because it would make them sound crazy.
Just like you are avoiding stating a theory.
If you assume anyone who doesn't believe the official story is crazy, then what's the point of compelling them to generate a narrative? You might as well jerk-off into a moist rag, or pursue some other form of entertainment.