1. i have a website that is hosted in a name and i change the name to a new one
so i need to re write the site with the new domain
2. i need to re write with an attention to have a clean tags for search engine optimization
3. i need to enhance the security of the site when re written it
4. i need to integrate a new e-commerce merchant gateway and test it with us and with our gateway provider , we use prestashop site
5. if you can upgrade the prestashop at once so when we re-write the site we can upgrade it is a plus
6. i need to add the functions that some products we need to publish without price ???? so i need this option to be added.