First of all, cast Mark spell (or use a potion or scroll or item with that effect) at the Moonmoth fort, next to Larrius Varo. After the bloodbath is done you can Recall to that position and talk to him so that you will isntantly get your name cleaned after the thorough Cammona Tong cleaning. If you have got enough gold, you stock on aoe damage scrolls (but since they are Dunmer, non-fire spells, like Drathis' Winter Guest and Inas' Chastening) and use them at your hearts pleasure at nicely stacked enemies. Usage of Shield and Summon spells and items is also advised to keep you up while you are at it freezing them to death and incinerating with lightning; same goes for placement that glargg has suggested.
I like to do the bloodbath quest...the bloody way
If the fight's too stacked for you, glargg's advice is more befitting, take down the loners, infuriating them beforehand, later turning to the others, dishing out damage en masse with scrolls. They are available to low-lvls and shouldn't be that expensive.