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Thank you for the additional information.
Here is a link to the current retail prices for this set: http://www.replacements.com/webquote/n__sand.htm
You can sell directly to them for around 40% of their retail price. If you were to sell the set on your own, it can go for as high as 40%- 60% of the listed retail prices. If you are considering insuring, you can use the retail asking price as the value.
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