That said, A-1 Bicycles located at 10211 Manchester in Kirkwood (St Louis), MO. Ray Florman, Jr is the owner, his dad was THE Ray Florman, who made John Howard possible, among other things. The wrenches there know vintage bikes and will order special items for you. They also have some vintage fixit parts. I got some Araya Aero rim washers and Suntour Superbe cones from them.
They were the only place on the planet, well in town anyway that I could find 7mm bolts for my moto