hello arne boeckenhauer,
we have more than 40+ professional developers team, who all are having more than 4 years plus experience and we have worked on php, wordpress, ajex, css3, html 5, js, mysql, laravel, magento, shopify, jquary, woocommerce. also we have worked on themes like avada, divi, jupiter and many more.
as per your requirement, we can develop and customize a error free with best quality check website.
However, one round of discussion with you will give us more clarity on the requirements and we'll be able to finalize upon the same before we commence the development activity.
If your project post is GENUINE than we are OPEN to negotiating on an hourly budget.
regards
dhairya n