I just went live with my new website based on the Drupal CMS system. It’s not perfect and some stuff is missing, but the basic stuff should work.
Links to content of the old typo3 based site should be completely redirected to the new site. Although I expect there will be a few links I forgot, so the next days could be a bumpy ride. I’ll check the log for dead links, but please tell me, if something doesn’t work as expected.