How do I remove the ignition from my girlfriends.

How do I remove the ignition from my girlfriends tiburon someone tried to steal it and broke apart the ignition tumblers. More than likely with a screwdriver. I was thinking of installing a push button ignition but I wil need to wait on parts and I cant have her car tying up my shop. Im afraid that the steering wheel is gonna lock and ima be stuck jacking this thing up. Please help me.