Big thanks to the WowHead Team for all the service and guides provided, they are very helpful.
One more information, the crafted legendary equipment tokens count as progress in your itemlevel - even if they are in the bank. So if you lacking some ilvl and want to join mythic or heroic groups, well there is a way to secretely push that ilvl :)
I'm still (slowly) levelling up. Relatedly, can anyone tell me if dungeon quests are involved when choosing/joining a Covenant?