The easiest way to make money on a new server as a low-level multiboxer is to charge for signing guild charters. So many people are desperate to get it filled out, they don't mind paying 1-5g per signature. Just drop the guild when it's created and get paid to join another. I did that quite a few times over the course of 1.5 hours and had 15-20g on all 5 characters at level 7. It works better on established servers that have a lot of gold floating around, but few low level characters available to sign charters.

As for the guides, you'll be so far ahead of them now with RAF you can pick and choose which quests to do. Avoid collection quests unless it's part of an essential quest chain. The quest XP bonus makes doing other quests worth it though. The guides tend to leave out instance quests and elite/group quests, but 5-boxers don't have a problem with those, so add them to your list if they can be completed easily.