Francis Franck, 14/04/20 23:32:
Up to now I've got the best results with HTTrack. It Includes the sidebar on most of the pages.
If your skin is simple enough to work correctly as saved by HTTrack, we lucky! The DumpHTML extension's main trouble was basically how to adapt the skin. Another possibility is to use wget or wpull and save a WARC file, to be then served with warc-proxy or similar. That's the standard for web preservation.
It might be obvious, but don't forget to archive a full dump on archive.org. https://www.mediawiki.org/wiki/Manual:Backup
If you're the same person who asked about this on the #archiveteam and #wikiteam channels, sorry for the repetition.
Federico