Mod to enable per map highscore?

I've always found the score system in HoMM3 to be very lacking. The scoring itself is very primitive and you could easily add kill ratio, quests completed, resources gathered, etc. But perhaps the most obvious is that there's just one set of scores for all maps, but some maps are far easier than others, so this does not make any sense to me.

Does anyone know if there's a mod to enable per-map highscores? I think this might be a nice feature to see in HoTA. Thoughts?