I think you should scrap the Elite armor. It just doesn't fit, and stands out far too much from the others. It doesn't seem as traditional as other Dunmeri styles. Instead, use that Tribunal Armor and rename it as such. It's in the same style as the normal armor, but the addition of black parts is just enough to make it special. The design also connects it strongly with the Tribunal themselves, and high-ranking Ordinators in the game (Berel Sala, Tarer Braryn, Elam Andas, etc.) are in the service of the Tribunal rather than merely being Indoril infantry, so it suits. Use the closed helm (the face of Nerevar is an important part of the Ordinator's image), but the only place you'll need to use it is replacing the helm that lies on the table near Berel Sala, as it's probably his. And also to complete the set for those players willing to kill for the armor.
Also, don't forget that you've already got High Ordinators at your disposal. The concept of High Ordinators was handled in a rather silly way in Tribunal, where every Ordinator in Mournhold is a "High Ordinator" just for being there. I think you should replace existing High Ordinators with regular Ordinators, and replace Ordinators in the Ministry of Truth and the secret library with High Ordinators - they can be Ordinators with proven devotion to the Temple, thus trusted with guarding their darkest secrets. Rename Her Hand's Armor accordingly. This will add a deeper kind of hierarchy within the Ordinators.
Give Scout Armor to some (not all) Ordinators not stationed at a major settlements like Vivec or Molag Mar - temples, Ghostgate, etc. I'd just have them use the normal closed helm for the same reason I brought up before, but you might want to make it light.
You might choose to distinguish between the four orders of Ordinators, which NPCs describe as:
The Order of the Watch provides guards for temples and shrines.
The Order of War fights the enemies of the Temple; most War Ordinators are stationed near Red Mountain.
The Order of Doctrine and Ordination are militant scholars.
The Order of the Inquisition identifies and suppresses heresy among priests and laymen.
The Order of the Watch are all those that serve as guards. The ones at Ald Daedroth are probably in the Order of War, and they wear expensive_robe_02. If I were you though, I wouldn't sort by the Orders, there aren't enough armors around. I would, however, see if I could implement those robes elsewhere, because as far as I know only the Ordinators at Ald Daedroth wear them and they could make for a neat alternative uniform.
Good luck with this, I'd really like to see this finished.
EDIT: Just realized I wrote a wall of text. Apologies, I don't mean to hijack your idea or whatever, just offering my input.