Im also doing this swap for a friend but didnt get an ecu for the engine. Also the block is stamped P2A. guessing autmatic? Wanted to shoot you anther good resource to help you finish your project a little sooner.Here is a link. Good Luck.
Rywire - Online Store
Call them and let them know what your trying to do.They will make a plug N play wire harness if you dont feel like making one of your own.