Where in oklahoma is a good place to get pickling cubrs?

i live in okc, i prefer to find them here in the city, moore is ok caus ei work there . But im trying to find pickling cubers, also known as Kirbys , and gerkins. im trying to make my own pickles and i like koshers more then dill, which you would use the fat thick pickles instead of the dark warty ones. lol. so walmart dosent have them like i hoped so where would be a good place? anyone know?, just till i can grow them next year