Right forum? Explorer computer in mustang

Hey I wasn't sure if this was just opinion, tuning, or tech so I put it here, please tell me if I am completely insane, but why has no one put a explorer computer in a mustang and done away with the distributor? I just had this wild idea of putting a 5.0 in a car and was thinking obviously I would get the 5.0 out of an explorer from a junkyard. My question is why wouldn't I just get the engine, computer, put it in the car, change the cam and the springs in the heads and call it a day? It has the same firing order correct? I am guessing there is a lot more that goes into this which is what I am wondering. Can the computer work with a manual transmission? Will it just not be as fast? More electronic parts involved? Someone enlighten me please!!! I am really interested in this. I am not sure if it's cheaper to just grab everything at the same time, or track down the motor, harness, computer from different cars.