Roger,
I have a basic 14 channel 2-way Cobra radio from years ago that I can use for the trip, as long as no one is planning to use sub-channels or anything like that. That should be sufficient for this group, right? (I only have 1 radio, not 2, since I gave one to ryanblacksvt at spring zing 2008 that he took home and I have not seen him since to get it back.) I was considering going out and getting a new set with the longer range, but anything over 2 miles requires an FCC license to use and I really did not see the need, unless the plan is to use subchannels of some sort with this group.
Also, what is the plan for the trip down? I assume you're heading down I-65 from Chicagoland toward Louisville... I will be cutting across on I-74 to join I-65 at Indy so I can meet up with the group in that area at a predetermined time and place. Let me know if you want suggestions for places...