Portability and redesign of sites

Good afternoon! You need to move the site to another domain name + add and fill the pages + edit / change the existing ones. All the material is mine, there is no need to invent anything and look for it.
There won't be any complex modules either. I try to make everything as simple as possible so that I can add the material myself.
Drupal site.
If all goes well, there’s another website that needs to be worked on.
Also, over time, you will need a specialist in promotion, buying links, etc.