You could look at http://warrior.archiveteam.org/ and https://github.com/ArchiveBox/good-karma-kit

I used to run a proxmox server with windows in a VM that had a GPU via gpu passthrough. Then connected to it via parsec. On my laptop connected to the local network it was pretty good.

I remember inteltechniques.com having a checklist you could do. But it sounds like a lot of work to manually remove your data from a hundred sites.