Bug

has anybody swapped a 2.5 engine in a 2009 Impreza. my boy blew a connecting rod thru the top of the engine. I just ordered a used engine and I am going to swap it myself. Is there any pit falls I should be aware of ? I have swapped many engines in my time but never a Subaru. it is an automatic, can I pull it out of the top, or dose it need to go out the bottom. looks like I can bring it thru the top. Do I need any special tool's for the job? Gas line tools. trany line tools, is there any thing special about how the tranny mates to the engine? ac tools or can I just pull them off to the side. look like I could lay it all over the fender. How long should it take start to finish? Thank for any insite. Bug