If you have any event and/or race horse training barns around, you could check with them.
My chiro is in the Nolensville, TN area and I THINK goes as far as Huntsville on occasion. I know Tuscaloosa is further and it would probably cost a lot to get her there, if she would even travel that far.
My horses have had equine chiropractors for 18+ years and this woman is the best I've ever written a check to. She is a DVM who took the hollistic route and also does acupuncture.
If the big money training barns in your area can't recommend someone, PM me with your e-mail address and I will forward it to her