3D tracking sword

One of my major problems is that the part of the sword is cut off at the top, I had to move the sword future back than I wanted to and had to rescale it, still not sure why this happened. I had to re-texture the sword a couple of times as these black marks would keep coming up as the camera panned around the stone. Fixing all these problems took up most of the day and I was only really able to track a few parts of my video. The next step would have been to place my sword in a fixed location and track that but as soon as I moved it part of the handle was cut, I re-imported it a couple of times added new lighting but non of these seemed to help or work, I re-formatted it and this seemed to fixed part of the problem but again when the camera paned the sword lost its handle.