Managed to pry the old bearing flange loose with two flat-blade screwdrivers and a lot of swearing. It was stubborn, I kid you not. What did I use to protect the crankcase from being gouged by the screwdrivers during the process? Popsicle sticks, the mechanic's friend.
The exposed bearing doesn't look too bad — so far.
Extracting it will have to wait until tomorrow, due to other demands on my time. The bearing puller is ready for action.