Ok so @eli back in the day when he was becoming a legend wrote about one of the most crucial things. Archive.org and the plethora of abandoned content.
You can search for expired domains and then download the site (I built archivescraper.net for this task)
When you find a good domain you throw up the old site on a unique c class ip.
For those of you who do know what a C class ip is, it goes A.B.C.D, so if you have a, b, or c ip number different from your home page you are fine.