A friend told me yesterday that one of the vintage tire companies (he was not sure which one)could no longer sell tires at the swap but could take early orders and be delivered at the swap.
Just call your favorite co. and ask. Checked the web schedule for Coker and Universal, they aren't scheduled to be at Chickasha. Wallace Wade Tires from Dallas is there usually, and Coker has been there in the past. Most times if you order and prepay in advance with your state address, and then pickup only at the meet, you beat the OK sales taxes.