OK I will try it with no o-rings and see how the video looks. I do plan to mount the camera with 3M double-sided foam tape so maybe that's all I need. The camera is very light Jahay.
EDIT: Here is a pic of the camera. It has a base/pedestal type of thing underneath the camera that you cant see very well, but that is where the cord plugs in. I haven't tried to control it with my transmitter yet, but I don't think it will be too difficult to get working.