I am not aware of any free of not-for-profit training. Unfortunately materials, range fees/dues, and liability insurance cost money. For what it is worth I am currently operating a less then profit organization and I still charge for services.
OP if you tell us what you needs are maybe we can direct you in the right direction. My initial reaction would be for you to find a local trainer and work with them one on one for part of a day.
If cost is your primary concern, I'd go to the range with you and tell you what I think. It wont cost you anything but ammo. I am not a professional trainer. I just like going to the classes and the range.
Are there any organizations in IN that offer any kind of fundamentals courses for managing and handling a handgun?