You need to check out IPF housings. Had them on my Amigo and miss them to this day. Look just like the original sealed beams.This topic always catches my eye, because I've been researching to do my own upgrade. My P'up has 6x7 headlights, probably the same size as yours. But mine are sealed beams (not sure what came on yours).
I'm not a purist -- my truck will never look original. But I am trying to find headlights that don't look too out of place on a 1980s vehicle. When I decide what I want, I'll share here on the site.