No need for Shield of Faith, Gilraen can never use weapons but is always the least likely to be attacked (except for some strong wraith world undead.) You can go with another spell.
Putting on most armor:
| Category | Don | Doff |
|---|---|---|
| Light Armor | 1 minute | 1 minute |
| Medium Armor | 5 minutes | 1 minute |
| Heavy Armor | 10 minutes | 5 minutes |
| Shield | 1 action | 1 action |
Reminder, a round is only 6 seconds.
Good news, Ceol, as an old campaigner, you can sleep in your armor. Not the most comfortable but doable. Gwaelur, same armor.
The Barkskin armor of Ghân takes only 18 seconds but still 3 rounds.
Bitur & Felareth your armor takes a long time to don.
Thoroncir your armor counts as light, so only a minute at least. (10 rounds)
Hejren & Gilraen wear no armor.