With so much first-hand organizational data available in service files, you can afford to skip most post-war sources. Ordinarily "reorganization" refers to new elections required for men enrolled for twelve-month terms under the conscript act of April 16, 1862. That shouldn't apply here.
Having no ancestors in this command or any other special interest, I know little or nothing about the 35th Mississippi. My post was intended to gauge your level of interest in this part of the regimental history. It's usually neglected. Most writers touch on the subject of organization lightly and move on.
It's an opportunity to become acquainted with officers and men of each company. IMHO the reader should know the home county or counties for each company, something about company officers (age, occupation, prior military service) plus when and where elections were held, first roll taken, when accepted in Confederate service and when members arrived in camp. Numbers available when organized would also be nice to know.
Of course the same is true for field and staff officers. Records of the adjutant, quartermaster and commissary may contain useful information about numbers on hand, clothing, equipment and perhaps even arms issued. Other wartime records available at the MDAH should be helpful along these lines.
You may also choose to work with the question as to why these men didn't enter service earlier.
Again, I can't offer much of anything that you don't already have, but would be glad to offer suggestions and ideas.