You are corect, after months of searching I was finally referred to Fred Adolphus. I have had a lot of correspondence with him and asked specifically about the Enfields. He said that according to his records there were no 2-band Enfields in Texas until very late in the war. He specifically stated that the Enfields referred to in the muster reports were 3-band muskets. I have a copy of Fred's muster report research and can email it if you'd find it useful. I also compiled the information I was able to find into a document that I prepared for our Co K unit. Actually I have 3 documents. A brief history, an 11-page illustrated equipment and uniform source recommendation article, and a list of recommended equipment and uniform articles. All this is based on a Red River Campaign era impression. As my daughter said, early war is a whole different ball of wax.
As to the Blandford book, Fred said that he has never seen any reputable period reference that indicated that anybody except a couple officers had any green on their uniforms. I work with a former campaigner re-enactor who used to work at Chickamauga. He said there are other known, documentable errors in the illustrations of that book so I have also discounted the 26th Texas illustration as well. Also, no lances show up in the muster reports and inferrence can be made from them that the unit never had lances.