Raising CoV faction with helmets at low levels. A couple ??s

[Iksar_with_a_plan]

Looking to raise CoV faction on a low level toon. Have a couple questions to that..

1.What faction do you start out with the Sentry for giant helmet turn ins?
2. What faction do you need to meet for those turn ins to gain you faction?
3. Is there a level requirement for those turn ins, and is there a level requirement for receiving the appropriate CoV gear?
4. There are various posts and threads claiming that the wiki value for turning in a helm is not correct. Some say +5 some give other estimated values under the +15 that is given on wiki. As for as anyone knows, whats the value? is Wiki correct?

Id like to note that Im most likely going to get suggestions to get a faction hit on Vindi/Statue/AoW, and I of course am going to to my best to give that a go.