Hey Mr. Corobb! I may be able to answer a few of those questions.
1. Here's a link to Faie without armor.
I believe that these are his troopers.
2. I'm going to say that Deviss had troopers that did not look like 327th soldiers at the Battle of Orto since Deviss was seperate from Bly's unit at that time.
3. The 182nd, as Angry Ewok said, is only mentioned by name and is never seen in any sources.
4. So far, I do not believe anything has been reveled about Plo Koons clone trooper unit(s). I like to think that he commanded the 442nd Siege Battalion. As for Captain Jag, he was in charge of the 127th Gunship Wing.
I hope all of this info helps you out!