If you're serious about an authentic impression in the upper Midwest then I would look into this group of Living Historians;
They do not portray any one unit per se but whatever the scenario or event calls for. A great and knowledgeable group of pards spanning many age groups but at 16 you might be one of the youngest. I could sing more praise about them but I'll let you peruse their page to see if it fits your needs. Understanding you're only 16 I'll warn you that kitting out with the ONV will not be nearly as cheap as cruising your standard sutler row faire but the end results will be well worth it. They often and happily lend quality kit to promising prospects until you slowly begin to gather your own after your personal research. Listen to their guidance as it will save you money in the end term. Don't purchase anything until after an event or two hosted by the ONV.
I'm fairly certain next weekend they have an event in Springfield at Lincoln's home. They'll be portraying the 52nd IL Vol. Inf. escorting some Secesh prisoners up from Ft. Donelson.
Brian Y. Mikels
Grant, Lee, Custer & Co.
"Das Paradies der Erde liegt auf den Rucken der Pferde."
"The Duck River Line-Winter 1863" 1, February 2009
Pvt. 2nd Tenn U.S. (Mounted Rifles)
"The Fight for Crampton's Gap" 16-18, July 2010
Pvt. Devaney Good, 2nd Vir Cav