Its really hard to determine the ammount of time it takes (different spots have different Exp Rates), but for a guesstimate i would say you get atleast 250 exp per Aviansie @ 150 Aviansies an hour minimum. Thats short of 40k exp an hour. As for profit, work on about 3500gp loot per Kill. So if you work on 250 exp per Aviansie you need to kill atleast 44k Aviansies (lol, good luck with that), and then 44k*3500gp = 154m. Subtract about 7m or 8m for supplies. You should be able to kill close to 180 Aviansies an hour with little focus so this should take you ~36days?