Keep an eye on Ebay, they come & go all the time for MUCH less than $125 bones (Guy must need money for the dope he's been smokin). I picekd up two VERY rare dual head spots (Red flasher on one side, spot on other) and a regular teardrop spot for about $30 each. Just do a broad range search for spotlights in Ebay motors, alot of them are miscategorized.

The install kit I bought new direct from Unity at www.unityusa.com/

They also sell new vintage light assemblies for cars and trucks, in 12 & 6V too.

1956 GMC 370 dump " 'Tater "
1970 VW Volksrod "the Black Bomber"
2007 Chevy Avalanche
2020 Jeep Cherokee Trailhawk,
2005 Harley Davidson FLHTCUI

I dig all cars, old and new, whether they were hammered out of American iron, German steel, or Japanese tin cans. Being unable to appreciate them all is missing out on a world of great things.
But thats just MY opinion! :P