After writing my Ironpaw Shuffle guide, JessicaHealy posted a very insightful tip in the comments, which I had actually missed from all the way back in November on the Consortium professions forum: the Cooking School Bell is an investment that's well worth the price of 50 Ironpaw Tokens. If you have completed To Be a Master and finished leveling your cooking, you can buy the bell which will let you summon Nomi, your very own trainee!
Nomi has his own reputation faction that you need to do daily quests to complete, and once that's done, he'll provide you with a one time gift of 5 of your choice of token-bought food, and then daily Tokens of Appreciation, which rewards a free Ironpaw Token.
Luphian, in the Wowhead comments, calculated the time it takes to get exalted:
Once this is done, in 50 days you will have the 50 tokens you spent to get the bell. If you're using the tokens to buy Soy Sauce, Rice Flour, or Black Pepper, it'll only take 45 days if you consider the reward you get for getting exalted.
Non-human, and no guild perk:
1000 reputation a day: 42 days, but four times through these quests, we will get two daily quests, because of the new gained friendship level. This 4000 reputation removes four days, so it will take 38 days to get exalted.
Human OR Guild-Perk (10% extra reputation):
1100 reputation a day: 39 days - but four times through these quests, we will get two daily quests, because of the new gained friendship level. This 4400 reputation removes four days, so it will take 35 days to get exalted.
Human AND Guild Perk (20% extra reputation):
1200 reputation a day: 35 days - but four times through these quests, we will get two daily quests, because of the new gained friendship level. This 4800 reputation removes four days, so it will take 31 days to get exalted.
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