Perhaps your way is less of a hassle if it can last to morning without getting banned. Sooo many observers in Ashran all it takes is the bot getting stuck on 1 poorly mesh'd mountain and the account is gone while you sleep peacefully in your bed dreaming about how your guy is gonna be all geared...
Generally,
WOD Normal Dungeons -> WoD Heroic Dungeons -> Raids or PVP(If you choose seems that PvP has been getting alot of attention lately from Blizzard so just be careful if you do run it PvP)
WoD Normal Dungeons will give you up to 615 then WoD Heroic Dungeons will give you up to 630 past...