The toll booth are wide enough to get a semi through, so your RV should fit. If you run through the "Open Road Tolling" lanes without an Ipass or EZPass transponder, then you have to pay online within 7 days or you will get a ticket in the mail.
If you are coming across on I-80, be aware that there is construction (as usual) between Joliet and I-39. Most of the time it moves pretty well unless someone messes up in which case it will back up for miles.
1999 Newmar MACA 3796 F53 6.8L
2016 Ford Edge Sport
Roadmaster Sterling A/T with Brake Buddy Select