YERRR. Blizzard hates gnomes like everyone else. This is the full pull I do for ST with a slightly different kill spot then other vids. Leveled from 54-60, but you can probably do it at a lower level.
I'm no expert, but I'd say its around:
150k-200kxp/hr - Based on how lit you are
40-60g/hr - Chance at epics which would bump this up
Gear & Talents (there's probably a better setup):
classicwowarmory.com/character/us/dreamscythe/roopert