"How would you approach the landing?"
Very carefully!
As Gushoneybun said, this isn't a standard failure scenario as the altimeter should also have failed.
Fly the aeroplane at the speed it is currently trimmed for and consider making a flapless landing to avoid configuration changes at low level.
Expect to stay on instrument to below the MDA for the approach (avoids stress when the ground doesn't appear at 600').
Get vectors for an SRA or PAR.
If none within range, find a VOR approach, probably be easier to identify the overhead position. Fly to the beacon and make a time based procedure.
When descending, maintain the trimmed speed until visual references have been established. You should know the approximate power setting for descent but just reducing by 3-500rpm should be enough to let you fly at the trimmed speed and an attitude 2 or 3 degrees below the horizon.
Needn't be a big deal.