it should come out easily. Once rear bolts, studs and the pressure hose flare nut is out, the only piece that keeps the pump attached to housing is the oil ring "pressure" against the housing itself.

Actually you didn't need to remove the pulley to make this unless you are changing front seal... and not even if, because if you are making a rebuilding job, removing the snap ring on shaft inside the pump will free the shaft allong with pulley. Which is needed to replace the front seal comfortably anyway