I know people that have 2 intact male cane corsos! If you can maintain a strong leadeship role in your home, there is no reason this won't work. You are raising the puppy with your dobie, which means, you will be the one who decides how their relationship manifests as the "pack leader" if you will
A couple times while our corso was growing up, he tried to act tough with our other dog for no reason. He got choked out, put on the floor, and lost all his free-range privelages in the house for a week until he remembered his place in the house. We havent had a problem since. Help reinforce in your home that the dobie is higher in the pack for now (feed him first, let him have access to areas the corso doesn't). In our home, the 60 lb pit mix is the queen and the corso is at the bottom of the pecking order....this is what worked for us...
I'm not saying your Corso won't necessarily try to challenge the pack order once in a while, but as long as you are ready to be there to remind him of his place, it shouldn't escalate. Is the dobie neutered? One thing you might not want to do is leave them alone together unattended until you really feel like you know and understand their reltionship with each other...but they are your dogs, you know them best, and no one can predict how things will turn out!
By the way, your dogs are beautiful! Keep us updated!