I don't know of someone in your specific area, but after talking to a few people and making a few phone calls I was able to locate several in my area with varying prices and recommendations. I am about 1/2 way between C'vlle and Greencastle.
I ended up doing my own install after reading several write ups on here and a few others. If you think you might do it your self, I suggest you put alot of thought into it. If I had it to do over I probably would have had one of the shops do it. I was under a time constraint, was signed up for the French Lick Jeep Jamboree, but had to cancel because I still didn't get the jeep finished and ready in time. It took alot of time and tools and I am still not 100% certain of my gear setup since it was my first. Something changed on my front axle when I did the final pinion nut torque and I almost ruined the pinion threads taking the nut back off (cheap nut). I went from 3.07 to 4.10 and installed detroit truetracs in both axles, which made it a little easier, since I wasn't using any of the old diffs.
Anyway, if you think you are going to do it yourself, make sure you know what you are getting yourself into.
Otherwise ask around and make a few phone calls and you will probably find some shops. I know there is a guy in C'vlle that works on jeeps, that could probably do it, but he is usually pretty busy and hard to get intouch with.
Good Luck !