If you are willing to have an underground midwife, that seems to be your only option. The legal midwives in Chicago won't travel to central Illinois.
I don't personally know any underground midwives in Central Illinois, but I know they are there. You won't find them by searching the internet or forums. Their names are closely guarded, because they could be prosecuted for attending home births. Midwives in Illinois have been prosecuted, so it's not a an imaginary threat. It's very real, and moms who home birth protect the names of their midwives, because they want them to be around for themselves, or their friends for the next baby. Unfortunately it seems like there aren't any other people here on MDC who are willing/able to respond to help you connect to local options. My only suggestion is to find Illinois Friends of Midwives on facebook, and then see if you can get some local connections from there. It could be that you'll need to meet with some other homebirth moms in person, before they'll share the names/numbers of midwives. It could be that you'll have to give your contact information to be passed on to the midwife. Not sure. It sucks that there is practically a secret handshake just to find a midwife, a midwife who would be legal if you went to Wisonsin, Indiana, or Missouri, or any one of 30 other states.