HELP: carburetor needed, '65 Dodge Dart/6

Had a real scary near-disaster when the valve failed on my 1965 Dart's carburetor. Nice, big fountain of gas spraying upwards and sideways, and flooding the engine (and the compartment) with fuel. Scary. Good thing fumes didn't hit the distributor before shut-off...


My mechanic hopes to find a rebuild and so far isn't having much luck. Anyone able to help out here? Please message me if so. Thanks, all!