How to make redirects for the old version of the site in a subdirectory?

Question

URL Handling

There is a site restored from the webarchive. Based on it, I want to launch a new one in the same topic, but at the same time leave a bunch of old indexed content and links. How to put the old version in the old subdirectory, keeping all the links from the search engines, and deploy pure Wordpress in the root so that all this works correctly? Is there any way to do this with redirects?