See the painting of the brigade's charge at Gettysburg. It should give you some idea.
https://mississippiconfederates.wordpress.com/2013/10/20/his-gallant-spirit-went-home-the-burial-of-general-william-barksdale-in-jackson/
Also, here is a page that might help. Near the bottom is a message from someone named Ryan who should be able to answer your questions. His e-mail as of 2008 is included. Hopefully it has not changed.
http://theminiaturespage.com/boards/msg.mv?id=150159