Original headlights would be from a mid 80s F150 or Bronco.
Agree Bronco or F150, 1985 or so. Got my replacements on Ebay about $160 pair if I remember rightly. I did a write up here on my upgrades. Search " Seeking enlightenment ". Led bulb...
I am interested in your upgrade, but was not able to find your write up. The search just turned up a post, but not one from you or about light upgrades.
Looking through their posts:Headlights: Attaining Enlightenment
My bronco got the cheap HID but the foretravel will get LED projectors.