I need help with neopets....paint brushes to be specific...any help out there?

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There are 7 paint brushes i want on neopets. Heres the list: purple, speckled, strawberry fiels, faerie, baby, plushie, and pink. I know that the baby and faerie ones are pretty expensive, but can someone tell me how much this is all gonna cost? And I was wondering how i can get a koi. My username is: lashfey. Thanks in advance!!!