Howdy Neighbor!
We're in Davenport, about 1 hr west of you, so Lawanna and I have you surrounded
Take Dick's advice and Join the TKS. There is also the Oklahoma Koi Society based more out of the Oklahoma City area, which we belong to. Speaking of which, we're having a Koi Exhibition in a few weeks just outside of Norman. Let me know if you are interested in attending. It is a mini-show with an auction following. You'll see some very high quality fish there and meet some great people.
There are also some good folks in the Tulsa Club, and a KHA or two who are very nice and helpful folks. You can get some great hands and eyes on help from them.