Yeah, I saw the Oklahoma location but didn't believe it until now. Out of state adoptions through DCS, or DHS where you are, mean much more work for the caseworker so not many of them choose to go that route especially when the current foster parents are willing to adopt. I hope you find many...
Have you looked at the Indiana Department of Child Services page? or http://www.in.gov/dcs/files/222612_FC_Mar-Apr.pdf for a list of children available for adoption. Last month or so I had several emails with specific kids that needed a home. Most of them were sibling groups, 2 or more kids.
I use a slumberjack 40 degree bag most of the time. Similar to this one Slumberjack Talon 40 Degree Rectangular Sleeping Bag Long, 80598 | Sleeping Bags | Sleeping Gear | GEAR | items from Campmor. Otherwise I just use a fleece sleeping bag which is really lightweight.