Option 1) Tiger. Very quiet, automatically disposes of corpse. Downside, illegal to own, most likely will eat you too, and your dogs, cats, neighbors, etc, etc.
Option 2) Live trap. Very quiet as well, downside, you now own a trap with a confused possum in it. Upside, simply drive out of town and relocate. Downside 2, possible illegal to relocate (check your local laws).
I'd go with option 2. Simple answer, no possibility of collateral damage to you, your neighbors, or anything else.