I am up for such an event, if you're serious about it
contact each and everyone of the clan directly, post on their forums, irc, etc.
some old schoolers still hang around on clan forums as well.
I happen to know a couple forums for the old clans
ulk-gang.net
kfcgang.net
#vck
i believe there are some VCK's, FKU's still lurking around ULK and KFC forums