I don't understand your problem if you are using the 70-200. Just rotate the camera/lens in the lens' tripod ring.
For the rest, get or make an L-bracket which uses a quick-release mechanism. None of the camera rotators will be as sturdy. Use the same quick-release system on the 70-200 and you'll be set.
Ok... and than what for the rest of the lenses? Think a little further down the line.

