Schmite, welcome to the site.
I don't have any help for you, on the praire chicken outfitter. But, I did grow up in southwest Kansas. I only remember hunting them a few times growing up. I believe that i have only shot one in my life.
I do still have a few contacts back in the very southwest corner of the state, west of Liberal. I don't know of any specific outfitters, but I could maybe get you in contact with one or two people that could get you onto some birds.
Most of what I hunted growing up there, was Pheasant and Quail. I don't know much about the praire chickens. Dark meat, is all that I remember, looked like liver.
I will try to get in touch with some folks back there, and see what i can come up with.
When are you thinking of going back. I have been out here in california for about 7yrs, and have wanted to make a trip back in nov. to hunt in sw ks. Was thinking this might be the year.
.....you've got to ask yourself a question: 'Do I feel lucky?' Well, do ya, punk?
Die' en ain't much of a livin' son.