Hi James,
Sounds like an exciting project! If you would like a quote on an integration solution, please contact us at eBridge Connections. Our integration platform can connect your Shopify store with your accounting or ERP system, as well as eBay, Amazon, and hundreds of EDI trading partners.
I invite you to build your own Shopify integration blueprint on our site at: http://www.ebridgeconnections.com/blueprint/
Hope all goes well with your planning.
Matt
