Hi Shaun
You've mentioned that every country is going to have its own website. FYI, ATUM can only handle stock for a single WooCommerce site. If you need to sync multiple sites, you would need custom development, I guess.
But, if you want to handle separate inventories within a single site. And assign each one to a specific country, you can do so with our Multi-Inventory add-on.
If you have further questions, please let me know.
Best Regards,
Salva.