There is an arkansas roller pigeon club with a few guys up in that area. I can't remember the name of their club tho. Arkansa roller pigeon association maybe? More than likely one of those guys can hook you up with some birds.
I typed in pigeons in the ft smith craigslist search and there is a guy in pocola who is selling roller pigeons. Not sure how much your wanting to spend...think these we're 5 bucks each...may not be the best spinners but they'd fly and be purty!