I am to record a theratre performance for a friend who is one of the artists.
Problem is, cameras are not allowed, so my plan is to buy a (used?) camera, move the viewfinder to the inside of a pair of glasses, move the controls (rec and zoom) to an external "joystick" and then place the optics and sensor on my shoulder.

But.. my problem is I am not very knowledgable about (video) cameras.

So, what shall I buy?
My requriements are:
* Viewfinder
* Good low-light capabilities
* Good sensor
* Good optics
* Possibility to take stills while filming

If I can find one with a broken screen that's perfectly fine for me.

Please give your input.

Best regards, Fredrik