Guild Wars 2

Have anyone actually tried to create elementalist being able to tank.I made myself now 30earth/30water/10arca build. I made full green level 80 cleric’s gear with cleric gems. And I do take much less damage,and I actually have more armour then some of my warrior and guardian buddies. And they use some defensive traits and items.
When I use my water attunement,I get some passive regeneration which actually heals also everyone around me (only 150 per tick).If I use signet of restoration,I get 300+ healing per cast and 20 sec CD healing ability. I can get my cantrips to come off CD faster and give me some regeneration,signet of earth gives me 90 toughness and ability to immobilize enemy. Elites are more or less useless. From earth attunement I get less signet CD and they remain their passive abilities even if I use them,so they make my healing signet pretty useful.
Yet I haven’t decided what sort of weapon type to use. In big mob groups with ranger and melee enemies focus can be pretty useful,scepter can give you some more range capabilities. But if I use focus,I get 1 less healing skill,and scepter’s healing skill has 30 sec CD. Daggers do have some nice auras to aid,lot of more damage and AOE damage and 2 healing skills in water attunement,seemed to work in soloing much better. Staff on the other hand gives me lot of combo field to assist groups and auto-attacks in water attunement heal allies next to mob I am shooting for 500 each time I hit the mob,can also be used if I am next to mob to heal myself a little bit more.
Have anyone tried anything of this type or have any suggestions? Trying to decide wether to make cleric’s exotic gear or something with more dps.