Dear Clients,
As per my understanding, you want to need some customization on your site which are built by Odoo website-builder and in Odoo portal.
I glad to know, currently i'm working on one of the automation ERP project with Odoo integration.
SO, i have API ready to move your data from any platform to Odoo like (Inventory,service, non-inventory, SO,PO, and other master data etc.) also able to customize any Odoo module.
lets have contact for further detail process and live demo if you want.