Give him the body punching of Tyson, and give him the power of Frazier. A better uppercut and left hook wouldn't hurt.
Teach him how to plant his feets, Ali couldn't put a man away with a good chin because he had no foot plant. When defending and in general have him bending more from the legs and less from the waist. Thats a big error that Ali made. Have him slip better against jabbers