If this is your first time multi-boxing it will take you longer than normal. Just by looking at your group make up that's a lot of classes to do as a starter group.If you stick with it and reach 70, you will be a master of micro-management. What "feels" like the fastest route to me is doing 1-15ish questing, 15-42 instancing. Then from 42-58 do quests and instance quests. 60-70 quest/instance grind mix and match to your "needs" with 2.4 5man quests are worth a lot more now so this will help.