I was checking out tires for my '66 at the Discount Tire on Thomas Road and East of 32nd Street. It is the store nearest to me. They don't usually stock the tires. However they can get them in a day.
I believe Discount is like most retailers, they need some business so they are willing to price drop to get you to buy now. I had my wife's car in earlier this month for a flat repair. The tires had about 5000 miles left on them and had warranties on them. I kept saying just fix the one that is loosing air and under warranty untill they made me a deal for 4 new ones that I could not walk away from.
So know that the tire price has some flex in it.
1966 Mercury Park Lane 4 DR Breezeway 410 4V, C-6, 2.80 - Streamless.
1966 Lincoln 4 door Convertible 462 4V 1971 Ford LTD Convertible 429 4V Phoenix ~ Yeah it's hot however it's a dry heat!