I would not suggest it. For one, they are two different species from different parts of the world.. and for another, the age difference is an issue, one could bully the other for food.
Perhaps it would be simpler to create a divider to put down the middle of your cage.
now that being said.....you could build a large lets say 5x2x5 ft cage. section it off in the middle with a solid piece of matter. and go from there. there must be seperation when dealing with saudia rabia/ yemmen....and madagascar.