Hi Lindsey,
Check out the following suppliers:
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Make sure to contact them directly to get the possible wholesale price. It's always best to talk with them for the prices, and let them know what your requirements are in regards to purchasing volume and they will happy to provide you with pricing based on those requirements, and also so long as the minimum order quantities set by the supplier are met. :)
If the above mentioned suppliers don't work for you price wise, try sourcing action figures from liquidators.
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Hope this helps. Let us know if you have further inquiries.