Old Nishi Doll

While browsing a local thrift shop, I came across a rather old looking Nishi Doll. While it has quite a few condition issues, it is for the most part very attractive. I paid 8 USD for it, and would like to know what it is worth. I have seen them go online anywhere from 30-500 USD, but I couldn't locate my model anywhere. The Nishi Co. Sticker on the bottom doesn't have a number of any sort, and the hair is light colored (Sun damage maybe? because the top of her kimono is faded a little as well) Anyway, I was wondering if someone could tell me what it is worth in its current condition? would there be a way to get it restored and boost it's value?