I think a quest like this has merit. However, I don't think getting X number of level points would fly. Perhaps if it give you a number of stat point increases to specific stats, that would be better.
the only downside to this suggestion is that hoof keeps adding quests with points spread through atk, def, dmg, mp. now anything i get to atk and dmg is completely wasted on me, i'd much prefer the chance to use the points where i see fit, especially if i were to sacrifice 6 weeks back killing vamp braskans....