Someone backed into my car tonight and put a nice big stress fracture in the rear bumper of my silver 330i....

I've done some research in the short period of time and have seen a few options for replacement. I'm open to anything (e.g. replacing front and rear if it isn't much more to buy full set/kit, going OEM, etc.)
Appreciate any help you guys can offer.
My first post - glad to join the community!