Multiple Warehouses (& connectors) for one product

[BasM]

Hey all, I'm looking to see what the best suggested setup is for the following approach to a client's store:

We will be firstly selling one product, but we want to sell from two warehouses to make sure we aren't impacted by duties as much as possible.

We will have two warehouses for one product.

• Warehouse 1: Based in UK and will serve UK orders – warehouse will integrate to our Shopify using Mintsoft
• Warehouse 2: Based in US and will serve US orders – warehouse will integrate to our Shopify using Pirateship

We are looking to solve the following challenges

• Show availability of the product for the local warehouse. US customers will only see US stock and UK will only see UK stock (so if UK is sold out but US isn’t that US can still order)
• Automatically split and send orders to the correct warehouse for fulfilment:
• UK order will be automatically sent to the UK warehouse immediately after the order has been placed on store
• US order will be automatically sent to the US warehouse immediately after the order has been placed on store

I've seen many discussions around this subject and see there are a couple of apps available - although it seems because we are using ERP for the two warehouses it may make things difficult. The Order Fufilment Guru app seems to not be able to automate the process as the warehouses have two different inventory apps.

Does anyone know of a solution to the above questions?

Thanks!