outback lowering

i recently picked up a 02 OB h6 that's 5 speed swapped and plan on making it a daily/project. i had BCs on my old 01 L and loved them. I've been looking online to see what the process of lowering the OB might be because i plan on putting coils on it (goal is back road warrior/show car) i was wondering if anyone could provide me with tips and/or parts i should be aware of that could cause problems when it is lowered and what steps i should take to prevent/solve the problems before i get the whole thing put together and on the road.