If there was a plane:-
Sorry, my friend. But with the information in this thread alone, the question is "If there wasn't..." and not the other way around. But go on.
1) Why did they refuse to release ANY footage until they were ordered to do so by the courts?
Right away, a couple of potential reasons come to mind (meant to satisfy an overriding belief, presumably your own, that it was inside job).
1. To cover the mountain of unreleased information.
2. Reason exists to continue the no-plane lie.
2) Why didn't they release all the video and images facing the direction of the incoming plane?
One possibility is that images of the sky and what might be seen in it, are being hidden.
3) Apparently the thin nose cone penetrated all the way to the inner walls but the engines left no holes at all AND no remains of them found at the scene!
That's the "Punch Out Hole" in the C-Ring. Best information says that's from landing gear, and it was documented that pieces of it were there, including at least one double rim at that location alone.
It's documented, too, that engine parts were found. The images are perfectly consistent with what should be expected. As to holes in lots of walls, a large area inside (where parts came to rest) didn't have walls. Only support beams.
4) Wake up
Let me ask you something. Being that you believe, through all the body of information you have allowed yourself to acknowledge, that 9/11 was, say, an inside job.... Is that right so far? Is that what you'd say about yourself?
Then why, when faced with a reality which shows that a plane hit, and an MSM Conspiracy-Culture which almost universally says no plane, while "the other side" -- MSM-driven, just the same, through YobTube and Gooble and all search-generated content -- remain seemingly unaware of that image, despite being the thing to make the case: wouldn't you ask what the hell's up with these facts?
I believe you'll find it has everything to do with Norman Mineta and his experience that morning, which he says involved the time approaching the Pentagon crash. It causes that attack to become a particularly sensitive issue, especially true when you realize VP Cheney didn't have the authority -- and knew he did not have the authority -- to do as he was acting to do. (Which, btw, is THE one, the only, direct path in 9/11 to break the lie. It could be smashed open with just a single question, IMO, asked to determine the true reason he did that. No acceptable answer exists. So it wasn't to help America, let's just put it that way. Everyone involved, one by one, would be taken down as a result of pursuing that single question.)