Importing of 2 Zencart databases into 1 Woocommerce database

We are importing customer data and order history from 2 Zencart sites and want to import them into 1 Woocommerce site. The zencart data from each of the 2 zencart cart sites will have a different account type when imported into the Woocommerce site. The 2 account types have already been setup on the new site (using the 2 names of the old sites we are importing from) and the imported customer data from each site must be assigned to the corresponding account type/role. The order history imported from zencart into Woocommerce should show under My Account - Orders and be complete with the product names, pricing, VAT, order date, shipping type, price, shipping and billing address and other other information that is relevant. There does not need to be any links to the old site. We will provide the complete information exported from the 2 Zencart databases.