migrate Odoo Modules v8/v10 to last version v11 Italian accounting compliance

Hello! We are an ecommerce business moving our accounting system to Odoo but since the new version available is v11 we wanted to know if you can migrate the Odoo modules we found for v8 and v10 to the latest one. The modules have to move from Python 2 to Python [login to view URL] project would consist of about 35 small modules, some are really tiny and others are a bit bigger, you can find them at the following link: [login to view URL] We have already 27 modules done from someone esle but we need to check if they are actually working and finish the other . We attached a file with the information on what happened to the various modules when we tried to install them. are also available the odoo 10 repositories with similar modules, which use the same license, they can be used instead of the 8 version, you can choose which you prefer to use, the modules must be compatible with Italian legislation and the new spreeometer 2018 (spreeometer 2018 ), Split Payment, fattura Elettronica PA (electronic invoice for public administration), Liquidazione IVA (VAT settlement), DDT(transport documents), INTRASTAT, Province, Codice Fiscale(fiscal code), Ricevute bancarie(bank receipts) module to odoo version 10, you can find them at the following link: [login to view URL] We need the work to be done with extreme accuracy as it manages our accounting, and we also require an invoice to be issued. we need constant contact with the programmer who accepts the job, to test the modules. I need an invoice at the end of the job. The work must be completed and 100% tested within 2 months. At the following link, the website of the Italian government to test the functioning of the module fattura pa: [login to view URL] the invoice-pa (electronic invoice for public administration) module must also be adapted to handle the new Italian electronic invoice b2b regulations, must be suitable to manage thousands of invoices per month, the new Italian law, requires from 2019 only electronic invoices in xml format for b2b between 2 Italian companies, can be issued paper invoices are for foreign countries Examples of the FatturaPA file (public administration invoice) and private b2b version 1.2 invoice and style sheet: [login to view URL] I kindly ask for an accurate reading of the project, thanks