Wow, I'm surprised that they are going for that much from junkyards, but I checked on car-part.com and also see several entries around a $950 price point, but some are lower, you might call a few and see if they are fully intact if not noted well on the listing:
Search Results}}L}}}HO&userSide=&userDate=2021&userDate2=2021&dbModel=27.15.1.1&userModel=Ford%20Explorer&dbPart=114.1&userPart=Headlight%20Assembly&sessionID=14000000249848298&userPreference=price&userZip=48371&userLat=42.8396000&userLong=-83.2920000&userIntSelect=1022176&userInterchangeSource=HO&userUID=0&userBroker=&iKey=&userPage=1
Heh, the forum code does not like that link, maybe this shortened link will work:
If you don't hear from anyone on this forum, you might try contacting one of the sellers of the lens or lens/housing assembly (coming without the LED module, I assume) to find out if they know what it entails to make the part work, for example does the old one need baked in an oven to soften up adhesive to crack it open, as many autmotive headlight assemblies do, and then what adhesive is needed to seal it back (or what would work best) if not included with the product.
Normally the front lens is polycarbonate, and a methylene chloride based cement is commonly used for polycarbonate, and seems compatible with (what might be...) an ABS housing, but that seems rather permanent, like it might never come apart again for better or worse. Similarly, epoxy might work, particularly if the mating surfaces are roughed up a little, but also might be challenging to get apart later. I wonder about urethane adhesives like those often used to attach windshields.