Need Band clamp for Terry Houston headers

[Brer Rabbit]

The clamp needs replacing, it just dosent want to seal properly. Of course its the one thats real hard to get to up next to the starter. I believe there is a gasket that may go between the two pipes. If anyone knows where I can get one or both of these items please let me know. Everytime I think I got this car beat, something else comes up! .