From what I hear in the third example of your takeoff on the video, you don't seem to be using enough throttle; consequently, the engine is lugging. That will produce rattling in a Brick. Also, you're probably shifting into the next gear at revs and speed that are too low. Combining that technique with an engine that needs a tuneup will produce rattles galore.
Give her more revs, but not enough to do a wheelie on takeoff.