Etsy, Amazon and Ebay script

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I need a script to connect to Etsy, Amazon and Ebay using the associated APIs. The only data I need from these stores is order info from each customer order (price, shipping, quantity, customer name, address, fees, item, phone#).
In addition to gathering order data into a MySQL database, I need to automatically post feedback on etsy, depending on if they paid and if it's been 3 or more days since they paid.
If you are able to make a script to automatically print postage (within business hours) using the API based on the data from the MySQL database and then mark the package as shipped online (amazon, ebay and etsy) and leave feedback (ebay).
I don't care what language the script is written in, as long as it is works on both windows and Linux. However python is a plus as it is a language I'm familiar with. The code should be neat so that it is easy to update and to potentially add more online stores later.
If you have any questions let me know. Also the winning bidder will receive a complete spec of the script.

Skills required:
MySQL, Software Architecture
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