OpenCart 2.2 & Magento 2.1 API integration

Hi, We need real time API integration between OpenCart 2.2 & Magento 2.1 We are expecting from this project bidirectional and realtime product, order, customer sync between opencart and magento We have sub online store work on opencart and we have main magento store. Product creation, order management and customer operations makes from main store's magento backend. So this changes should effects opencart in real time. --PRODUCT We need bidirecional and real time product information and quantity sync when they changes. Also we have different category structures, so we need category mapping feature. --ORDER We need bidirecional and real time order sync. So when an order placed at opencart, integration module should decrease and sync product's qty and creates order at magento side. And this order should fully managable from magento backend. Also we have few different payment and shipping methods, so we need payment and shipping mapping feature. We don't want to sync other orders (created at magento or other than opencart) magento to opencart. --CUSTOMER We wish to create and sync customers realtime and bidirectionally. So intergation should creates customers and assings specified customer group. We don't want to sync other customers (created at magento or other than opencart) magento to opencart. --OTHER Important! Our catalog includes configurable products, their have size and / or color variations, but product variations or options handles different ways on magento and opencart. This integration module should convert, map and sync configurable products smoothly. Attribute Field Mapping Feature We have manually added product attributes at magento side, and we want to use this attributes with API integration. For example custom description, custom product name, custom price, etc attributes. So we need attribute mapping feature for using this attributes. We want mapping feature like magento's Product Fields Auto-Generation feature settings at Configuration > Catatog > Catatog. Should can usable more than one attributes side by side for example we can use color and color2 attributes for 2 colored products. Enable / Disable Products Also we have multi select type platform attribute, this attribute includes store names and we wish to add or remove product to opencart store if store name option is selected. So this attribute works enable / disable option for API integration module. This is important for us: Support for errors after project completed, support for solving problems and conflictions next magento and opencart releases. Finally we are not looking only a developer we need a partner for longtime collaboration. This project is first of our API projects, we have a few API integration projects and we will post these projects next days. Thank you and good luck!