Create "Bridge" to update Ecwid Item Inventory by SKU from QuickBooks POS/Atandra's Thub

I run a website with an Ecwid store in it. Ecwid provides API access and claims that using their API something can be built that will push updates to combination products by their SKU. All of my other stores are OSCommerce/Magento and update everything (tracking, inventory, sales, etc..) through Atandra's Thub. Ecwid is also using this service but lacks in the update area from Quickbooks POS to Ecwid. This should be an easy project for a skilled developer. Please have knowledge of this ecommerce store Ecwid and Quickbooks POS. I will post more information or will accept questions if you have them.