Pilar Casares Alaez

Hello, I recently found my grandpa's old Bolex 480 macrozoom super 8 camera, which I want to test out to see if it works, however it seems like the battery holder was lost. I am trying to look for a spare but I am finding it really hard to find any spare battery compartments of this specific camera, so I was wondering if I could use battery compartments from similar models? Any advice on how to find a new batter compartment is greatly appreciated!