2007 impreza 2.5i engine swap

i found a 2007 impreza for a good price at a car lot in gwinnett. im courious, the only thing that im worried about is that its an automatic. how much of an issue is this going to create when i go to swap the EJ25 and transmission?

i have an 05' sti i totalled and now want to transfer all my component over to the new one i want to buy. :sx:

 

everything should just swap right over

 

Thats what im thinking, my main concern is the harnesses. i know i probably have to swap that out and the dash cluster.

 

Yeah man gut out the 2007 and swap everything off the sti.