Hot water valve replacement

Hi folks,

The '67 Dart has a heater hot water control valve the the local parts sources can't match up. It has a 2 port canister which steers the valve open/close instead of the more common (in the parts houses) "hold to keep open" type. Can someone supply us with a source for this valve assembly? The valve section itself uses the standard 5/8" hose stubs set at 90 degrees, but an inline model would work just as well.

Thanks for any assistance!

Regards, Mark