In choosing headlights for this project we eventually turned to vintage Guide headlamps. These OE replacements were a popular choice in the 1950's largely due to the fact that the parking/clearance light could be converted to a turn signal. For that same reason, the Guide 682C's are a sensible choice today.
Trivia of note - Guide was one of the first companies to produce electric headlamps in 1908. They also introduced the first dual-filament high/low beam headlight (1924) & the first autotronic headlight dimmers. Guide introduced the sealed beam headlight in 1940.