I have a 1997 subaru impreza L Awd 2.2L with an a/t and I am planning on swapping in a 2004 WRX motor and a/t? Has it been done? is it as hard as everyone is telling me? could i do the electrical myself? HELP!!!!!

Oh Yeah. I am getting the engine and tranny from 2004 wrx in a junkyard that was hit in the ass end and totalled but the engine and tranny and front end are fine. i am getting this car for $700. gotta love connections. given this information would it be worth the time effort and money?