If your intending to replace with another cast iron exhaust manifold than I would think a standard ecotec unit would be identical for the drivers side, passenger side as mentioned would have the EGR port.
If you have a cracked exhaust manifold you may as well splurge for some decent headers like pacemakers or something similar. Contact the user Not_An_Abba_Fan on this site, he does good deals on exhaust systems.