I'll find what quests I can do (I've done the first two parts of Samophlange; part 3 requires a kill), but I'm already thinking about seeing how far an Alliance pacifist can get, and how to learn from my mistakes:
The ideal, I think, would be a gnome hunter, if such existed. The +15 engineering would allow immediate use of target dummies, and other useful items sooner, like a goblin rocket helmet. A pacifist gnome warlock could almost work, as oxymoronic as it sounds. But creating soul shards requires killing, and imps can't tank. The best choice is the cliché, the Night Elf Hunter. Shadowmeld will probably come in handy.