Swap the bits over like in this photo, and just un-bolt your old manifold from the engine and throttle body, and then bolt on the corolla mani back onto the engine and TB. If you can get the Throttle Body to go with the corolla manifold that would be a bonus, so you don't need to make any modification to the throttle cable. Exhaust system is just bolt off and bolt on, get some new exhaust rubbers whilst your at it