To get the ball rolling I started a wiki page,
http://wiki.project1999.com/Solo_Artist_Challenge, and copied over the old rules/mob list. If anyone wants they can feel free to edit it to add Velious challenges or re-classify Kunark-era ones that have become easier, or people can propose stuff here and I'll try to keep the wiki in sync. Of course nothing in the wiki is "official" in any way, I just thought it might be a nice way to work on the list collectively.
I also made a wiki version of the old Kunark-era version on
a separate page, so we can still reference it easily even as the newer one gets modified.