I would also enquire here as to the need for cans.
You posted in a separate topic that you are with the 23rd NC I think.
What is the original source of canned food for this portrayal?
Have you found documentation of canned food being issued to Confederate medical officers?
Medical Director Bee's Brigade - 150th First Manassas
Medical Director Evans' Brigade - 150th Leesburg
Medical Director Valley District - 150th McDowell
Chief Surgeon of Division - 150th Seven Pines/Seven Days
Chief Surgeon of Division - 150th Sharpsburg
Chief Surgeon Heth's Division - 150th Gettysburg