You're welcome :-)

I have put it in a metal and plastic case. It was not 100% waterproof. Will you use the Raspi camera or a third-party USB one? I would say that every case that you seal up could be work. Maybe you have to check the temperature inside. I would also put a small packet silica gel or some rice inside to absorb the humidity.
Just found a case like this https://www.hammfg.com/part/RP1215C
Maybe the plastic is clear enough to get a good image quality or if not, the lens could look through a hole.