If you're in East Texas, you have access to some very good archives at Sam Houston and at Hillsboro, among others. What about SF Austin? Sorry, I can't remember exactly what you're closest to! Check those out for less-published accounts that you may not have seen other places. Borderruffian has posted some Trans-Miss stuff that is local, just the other day. One more thought--I know a number of historians are currently working on more info on Texas troops. I think we're past the day of only concentrating on the East and the big names....I feel your pain. (Have you been to the archives in Austin? I wasn't looking for Civil War stuff when I was there, but I would think there might be some good stuff. That's at least where I got great-granddaddy's pension records)
then mosey over to Huntsville and take a look. Palestine, Tyler, and several of those larger towns have excellent Texas history/genealogy sections in their libraries. As a matter of fact, so do some of the little places like Centerville (and excellent BBQ to boot). I know Dr. Susannah Ural's book should be ready at some point--she's been reading us excerpts from her research for a couple of years, so I'm expecting it--in which some of those units are included. (She's in Mississippi now). I think you would enjoy the Hood folks very much, and they would like to know you.
Bringing the