Few Odoo 8 tasks

Situation: I have a Odoo8 Magento1 connector installed with some modifications. Now i migrate the webshop to Magento2 and got Webkul M2 connector installed on a testDB at first. Old modifications don't work anymore and i want the functionality to be the same so my odoo 8 data keeps on working with the change to M2 for now. Few tasks on my Odoo 8 install: - There is an existing modification that sets fiscal position on an order imported from M1 --> i want that to be run for M2 imports (Webkul connector) too. - There is an existing modification/function that presets shipping method in odoo 8 according to country --> i want that to be used again for orders imported from M2 - I want payment references of payment methods (CreditCard ID or Paypal payment ID) synced to Odoo8 Reference/Description field of Sale Order. - TOFIX: When creating a new customer, i can't change/set price list, it always remains standard, not sure why. Looking for a single freelancer with good knowledge, less an agency if possible. I got a really small company so i need this to be done on a very reasonable budget. I'll have more Odoo 8 modifications in the future.