I Need Help?..?

i found a B16a1 automatic for my 91 integra. Rite now its automatic and i plan on keeping it like that. So i want to know what changes and parts doI need in order for the swap to be a success. I was told I need to go on a hunt for an automatic ecu cuz the other ones wont work rite. SO please help me im in southern cali. THANKS ALOT.:bowdown: