Why not have access to all spells? Imean it is a retail server right? So, say max level is 80. We all get to have tier 10 gear and battle a boss. A normal boss, it hasnt got to be a gm. Its just thta the gms will be hosting it. So they get to choose the players. Say a certain amount of players sign up for this particular event. 10 would be ideal, since thats the standard size of a raid group. No max haste no nothing, just retail wow gear. By the end of the week, 10 players are RANDOMLY CHOSEN, to play healer, tank or dps. All players will be able to watch the event without being able to interfere. The grp gets a standard amount of gold, equally distributed among the members of the group, a piece of gear delivered by mail or even a weapon or rare mount.
I think this should be the main pve event of this server.