how to get this headpiece combo?

Hello dear fellow ritualists!

Before Nightfall I did have the following headpiece:

max armor
+1 Restoration Magic (intrinsic bonus)

When Nightfall was released it got automatically upgraded to this:

max armor
+1 Restoration Magic (intrinsic bonus)
+1 Energy

Unfortunately I am a "health addict" trying to boost my ritualists max health as high as possible, 625 points that is at the moment, including +60 health from a green staff. So I do want to get rid of that stupid "+1 Energy" bonus in my headpiece and replace it with more health boni. Unfortunately it seems not to be possible to put a "Survivor's Insignia" into an old (Tyrian, Canthan) armor and I am probably forced to get a new headpiece. I think of the following:

max armor
+1 Restoration Magic (intrinsic bonus)
+5 Health (Survivor's Insignia)
+10 Health (Rune of Vitae)

Can anybody tell me where the earliest point in the storyline of Nightfall is to craft such an armor headpiece?

The guild wiki got some shady references to "Vabbi Armor" and "Ancient Armor", but those are pretty expensive and I can get them only after playing through half or even all the game - which makes this option a little ridiculous because I would appreciate that health bonus while I am playing through the storyline of Nightfall.

Thanks a lot,
T.T.H.

Those are the only two options I'm afraid.