From my understanding there is a range of offsets that will work. It will also depend on how wide you go. You can squeeze 19x10s in the rear if you are feeling lucky, or you can roll the fenders and get some 19x10.5 in there.
Here is my setup:
19x8.5 front offset +23 (i think?)
19x9.5 rear offset +24 (i think?)