The game does need a 1h Morningstar, and that model looks good to me. For stats, I would say 70 reach, 29 pierce, 96 speed, bonus vs. shield.
Basically should be balanced against the broad 1h battle axe secondary mode. The above stats give it 2 more dmg, 3 less reach, and 1 less speed than the broad 1h (and the fact that you don't need to hit X to break shields).