not something i am familiar with but if you’re running into issues with things appearing in front of the camera you could use a ray trace to hide anything that intersects between the camera and an object like the character. you might also be able to use distance fade for that. in a lot of older games obstruction issues like that would be handled by having the top parts of models separate from the bottom and just hide the top if it got in the way.
i don’t know about using multiple cameras.