Hi Andrew,
the mirror supports HTTPS now:
mirrorNNN => { adminContact => "nsane2307 eml cc", orgName => "tor-mirror.de", isoCC => "DE", subRegion => "Germany", region => "Europe", ipv4 => "True", ipv6 => "False", loadBalanced => "No", httpWebsiteMirror => "http://tor-mirror.de/", httpsWebsiteMirror => "https://tor-mirror.de/", rsyncWebsiteMirror => "", ftpWebsiteMirror => "", httpDistMirror => "http://tor-mirror.de/dist/", httpsDistMirror => "https://tor-mirror.de/dist/", rsyncDistMirror => "", hiddenServiceMirror => "" }