Hi Sir
I will help you to migrate a drupal site database to opencart, categories, products, product options, product attributes, related products as per your requirements.
I am a professional developer/designer and have strong skills in web development (PHP 5/7, Laravel, Codeigniter, WordPress, Woo Commerce, Python, React Native, NodeJS, MySQL/MongoDB/SQLserver/Hbase, Github, AWS...) and frontend (HTML5/CSS3, jQuery/Angular/GWT/React, Bootstrap3/4, PSD to HTML,...) as well as a good knowledge of websites ergonomics and SEO.