Valuation for a limited edition item

Does anybody know how much an immaculate condition limited edition mint Kit Kat would go for these days?

I'm struggling with the holiday funds for this year so I'm thinking of selling it.

Purchased in 2003, excellent condition.

Any ideas, or sensible offers?

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Here's a picture of it.

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Actually here it is.

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they sell them in the shops now :confused2: :confused2:

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