Adding subinventories and locators from one inventory org to another

Summary:

As part of 3-34338277651, we are changing the cost method to 'Standard' in one of the inventory orgs.

Per Oracle's suggestion, we are creating a new inv org, cost org and cost book. In the process of creating a new inventory org, we are also concerned to retain the same subinventories and locators from the old inv org to new org. I did test creating the same subinventory and locator in new org as old one but it seems to be time-consuming. I also attempted to download the details from FSM- Manage Subinventories and Locators but it is giving the details from other orgs.