Of the three roles, gear honestly matters the least for healers. Tanks and DPS benefit tremendously from keeping their weapons top of the line; healers can do fine with a weapon that's a bit less, because if you want to be safe, you're overhealing some anyway. What's more important for healers is to know all of the tools they have at their disposal, how to best use them, and pay attention.

If you're just curious how big your heals will be though, then play around with this:
http://valk.dancing-mad.com/calculat...ng-calculator/


For DPS in non-Coils... honestly, people get by fine with 100-200. You have people afk-autoattacking and clearing that way.
And then you have the couple of people doing 400-500 to balance things. Against a single-target, at least. Depending on mob size, and how well they're stacked / how well tanks hold aggro, you can see some AoE classes spike over 1-2k.